Is this compliant with Maryland Heavy Barrel requirements? Previous posted questions say yes but I don't see it on the Ruger site. Is the barrel stamped instead?

Hi Rick, no sir, this model does not have the heavy contour barrel. There are no MPR models with the heavy barrel. There is a Standard model and a Free Float model with HBAR & MD compliant. https://www.budsgunshop.com/product_info.php/products_id/34869/ruger+ar+.223+remington+5.56+nato+16in+10rd , . https://www.budsgunshop.com/product_info.php/products_id/114528/ruger+8537+ar-556+223+rem+5.56+nato+16.1+10+1+6-position+collapsible+stock+black+hardcoat+anodized , Stay safe & have a great day!

Is the trigger adjustable from 4.5lbs to a lower setting? I'm not familiar with this trigger setup on an AR.

Hi Leonard, The Ruger Elite 452® AR-Trigger is a two-stage trigger that offers a smooth, crisp, 4.5 pound trigger pull. It features a full-strength hammer spring for consistent primer ignition and a lightweight hammer that enables a faster lock time for improved accuracy. It is not adjustable for a lower setting. Stay safe & have a great day!

Hi Leonard and welcome. No Sir, it is a fixed 4.5lb 2 stage trigger. Cheers and stay safe!

I’m looking to purchase this in the next few days, but want to make sure it is legal to ship and own in Colorado?

Hi Joseph, it is compliant except for the 30rd magazine. If you buy it, Bud's will remove the magazine and you will have to get your own compliant magazines. Or you can buy this model with the 10rd magazine https://www.budsgunshop.com/product_info.php/products_id/114526/ruger+ar-556+mpr+556+18+black+10rd , Spare mags here https://www.budsgunshop.com/product_info.php/products_id/1127/magpul+mag559-blk+ar-15+pmag+gen+m3+10rd+.223+rem+5.56+nato+black , Stay safe & have a great day!

Hi Joseph and welcome. Yes, as Buds will remove the non-compliant 30rd magazine as an option. 10rd compliant magazines are available here : https://www.budsgunshop.com/product_info.php/products_id/1127/magpul+mag559-blk+ar-15+pmag+gen+m3+10rd+.223+rem+5.56+nato+black ------------------------ https://www.budsgunshop.com/product_info.php/products_id/114526/ruger+ar-556+mpr+556+18+black+10rd --- Cheers and stay safe!

Does this gun shoot 223 also?

Yes, this is a 5.56 so it can safely shoot 5.56 or 223. Hope this helps.

Roy, yes Sir. The barrel is stamped 5.56NATO so it will safely fire 5.56 and .223 no worries. Cheers and stay safe!

Roy, yes, this will shoot either 5.56 or .223. You can shoot .223 from a gun if the barrel is stamped 5.56, but you shoulkd not shoot 5.56 from a gun if it is stamped .223. Have a great day!

what is twist rate on barrel?

Cold hammer-forged alloy barrel with 1:8" twist rifling that provides exceptional accuracy with bullets from 35 to 77 grains. M4 feed ramps and 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition. The barrel and 1/2"-28 Ruger® flash suppressor have a matte black oxide finish to reduce glare and provide corrosion resistance.

Brandon, this rifle has an 16.1 inch 4140 Chrome-Moly Steel Cold Hammer Forged Barrel with a 1:8" Twist Rate, Five Groove Rifling & Muzzle Threaded 1/2-28 TPI. Cheers and stay safe!

It is a 1:8 twist with 5R rifling, Full specs here https://ruger.com/products/ar556MPR/specSheets/8542.html

Does it have sling mounts or do I have to add that?

The stock has a little hole in it to accept quick detach/qd sling mount. So all you'll have to buy is a qd sling mount and a one point sling. Hope this helps.

Is this MD Complaint if Buds ships this with 10 Rd Mag?

Moshin, yes Sir it is when shipped without the magazine. Maryland requires a heavy profile barrel which this has. Cheers and stay safe!

Yes that's good to go as long as you use buds "high capacity removal service" (it'll walk you though it at checkout) I have the 18" version of this rifle and it is a fantastic shooter, with some really great features, the furniture is 1st class the 5R rifling and 1:8 twist, the rifle lenght gas system, chromed bcg, you may want to switch the muzzle brake out for a flash suppressor (i have a YHM Phantom on mine), and throw a light and some sights on it and its ready to rock.

Moshin, it is MD compliant without the 30 rd magazines. Bud's can remove them for you, but you will have to replace them with 10 rd magazines. https://www.budsgunshop.com/feeds/state_reg/maryland_restrictions.pdf

yes if it is shipped with a ten round or less mag it would be MD compliant ✘Rifles with a capacity over 10 rounds. ✘Semi-automatic rifles with a detachable magazine and have any TWO of the following features: 1. Folding stock (Not including telescoping [collapsible] stock) 2. Grenade launcher or flare launcher 3. Flash suppressor https://www.budsgunshop.com/feeds/state_reg/maryland_restrictions.pdf

Is this the MD compliant version?

Joshua, unfortunately not as configured Sir. It would be when Buds removes the 30rd Magazine (It has a Heavy Profile Barrel) : https://www.budsgunshop.com/feeds/state_reg/maryland_restrictions.pdf

Can this safely fire .223 like the 8500 model?

David, yes it can. Any 5.56 rifle can also shoot .223, but not the other way around.

Yrs sir, this is an upgraded model over the 8500, it features a free floated barrel (which will improve accuracy) optics ready (low pro gas block, and railed/mocked handguard) B5 systems furniture (instead of milspec) a Ruger Elite 452 2 stage trigger, and Ruger muzzle brake. And yes this will shoot all 223 and 556 i have had 0 failures with mine (i have the 18" barrel, but still very similar rifle)

David, yes Sir it ca. Any rifle with a 5.56 NATO stamped barrel will shoot .223 no issue. Just not the reverse. Cheers and be safe!

Hi since I didn’t have luck with my previous selection, could you please confirm that this firearm is permitted to use in Puerto Rico. If so, I’d like to purchase it. Thanks.

Edgard, this is not either Sir. In PR a semi-auto rifle with a detachable magazine and any two of the listed restrictions is not legal. This rifle has restrictions 1, 2 & 3 as listed under Rifles here : https://www.budsgunshop.com/feeds/state_reg/puerto_rico_restrictions.pdf

Edgard, sorry, not PR legal. Telescoping stock and pistol grip make this illegal. https://www.budsgunshop.com/feeds/state_reg/puerto_rico_restrictions.pdf https://www.budsgunshop.com/product_info.php/products_id/76388/smith+%26+wesson+m%26p15ft+state+compliant+10%2b1+223+rem%2f556+nato++16%22

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Ruger AR-556 MPR 5.56x45/.223 Rem 16.1" Black w/B5 Bravo Stock 30+1 - Blue/Black, 16.1" Barrel, 30 Rounds, Synthetic, Black Stock

Name: Ruger AR-556 MPR 5.56x45/.223 Rem 16.1" Black w/B5 Bravo Stock 30+1
Brand: Ruger
SKU: 120317
Availability: InStock
Rating: 4.80 (21 reviews)

21 Reviews| 10 Questions & Answers

Model: 8542

Condition: Factory New

Bud's Item Number: 120317

UPC: 736676085422

MFG: Ruger

Questions & Answers (10) Reviews 4.8 out of 5

**Mouse over image above to zoom any area, or click on image to zoom the entire image.

Ruger AR-556 MPR 5.56x45/.223 Rem 16.1" Black w/B5 Bravo Stock 30+1

Lightweight 13.50" aluminum handguard is free-floated for accuracy and features Magpul® M-LOK® accessory attachment slots along the 3:00, 6:00 and 9:00 positions. The top rail has been docked in the center for improved grip access and reduced weight while maintaining Picatinny at the front and rear.
Flat top upper receiver features a Picatinny rail for easy attachment of magnified optic, red dot or open sights.
Made from 7075-T6 hard-coat anodized aluminum forgings, shot-peened and proof-tested 9310 steel bolt, and 8620 steel bolt carrier. The inside diameter of the carrier and gas key are chrome plated and the key is staked for longevity.
The Ruger® Elite 452® AR-Trigger is a two-stage trigger that offers a smooth, crisp, 4.5 pound trigger pull. It features a full-strength hammer spring for consistent primer ignition and a lightweight hammer that enables a faster lock time for improved accuracy.
Lower receiver is fitted with B5 Systems Type P23 grip and Bravo collapsible buttstock on Mil-Spec buffer tube.
Cold hammer-forged alloy barrel with 1:8" twist rifling that provides exceptional accuracy with bullets from 35 to 77 grains. M4 feed ramps and 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition. The barrel and 1/2"-28 Ruger® flash suppressor have a matte black oxide finish to reduce glare and provide corrosion resistance.
Ruger® muzzle brake is a radial port design that significantly reduces felt recoil and muzzle movement. The threaded barrel allows for standard muzzle accessories to be installed.
Mid-length gas system provides smooth operation at a lower gas port pressure than a carbine system.
Also includes: one, 30-round Magpul® PMAG® magazine.

Product Information

Metal Finish

Blue/Black

Action

Semi-Auto

Caliber

223 Remington/5.56 NATO

Gauge

N/A

Barrel Length

16.1

Overall Length

33" - 36.5"

Trigger

Ruger Elite 452 AR-Trigger

Safety

2 Position

Capacity

Stock Material

Synthetic

Drop

N/A

Ignition

N/A

Chamber

N/A

Hand

Right

Item Type

Modern Sporting Rifle

Stock Color

Black

Length of Pull

Adjustable

Product Information

Metal Finish

Mossy Oak

Action

Semi-Auto

Caliber

30 Super Carry

Gauge

410 Gauge

Barrel Length

Overall Length

39 1/4"

Trigger

Geissele

Safety

Tang Safety

Capacity

16+1

Stock Material

Carbon Fiber

Drop

1.5" @ Comb & 2.37" @ Heel

Ignition

N/A

Chamber

2.5"

Hand

Ambidextrous

Item Type

Stock Color

ATACS-AU Camo

Length of Pull

Product Information

Metal Finish

Color Case Hardened

Action

Break Open

Caliber

Not Listed

Gauge

12 Gauge

Barrel Length

Overall Length

43 1/8"

Trigger

BX Trigger

Safety

Capacity

Not Listed

Stock Material

Drop

1.75" @ Comb & 2" @ Heel

Ignition

N/A

Chamber

Not Listed

Hand

Item Type

Other

Stock Color

American Walnut

Length of Pull

Product Information

Metal Finish

Color Case Hardened

Action

N/A

Caliber

.36

Gauge

222 Remington

Barrel Length

19.8

Overall Length

39.88"

Trigger

Direct

Safety

Cross Bolt

Capacity

2 + 1

Stock Material

Aluminum Chassis

Drop

1 1/8" @ Comb & 2 1/4" @ Heel

Ignition

N/A

Chamber

N/A

Hand

Item Type

Stock Color

Mossy Oak Shadow Grass Blades

Length of Pull

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Retail Price

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Cash Discount Price

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Ruger AR-556 MPR 5.56x45/.223 Rem 16.1" Black w/B5 Bravo Stock 30+1

Model 8542	Condition Factory New
Bud's Item # 120317	UPC 736676085422
Manufacturer Ruger

Ruger AR-556 MPR 5.56x45/.223 Rem 16.1" Black w/B5 Bravo Stock 30+1

Lightweight 13.50" aluminum handguard is free-floated for accuracy and features Magpul® M-LOK® accessory attachment slots along the 3:00, 6:00 and 9:00 positions. The top rail has been docked in the center for improved grip access and reduced weight while maintaining Picatinny at the front and rear.
Flat top upper receiver features a Picatinny rail for easy attachment of magnified optic, red dot or open sights.
Made from 7075-T6 hard-coat anodized aluminum forgings, shot-peened and proof-tested 9310 steel bolt, and 8620 steel bolt carrier. The inside diameter of the carrier and gas key are chrome plated and the key is staked for longevity.
The Ruger® Elite 452® AR-Trigger is a two-stage trigger that offers a smooth, crisp, 4.5 pound trigger pull. It features a full-strength hammer spring for consistent primer ignition and a lightweight hammer that enables a faster lock time for improved accuracy.
Lower receiver is fitted with B5 Systems Type P23 grip and Bravo collapsible buttstock on Mil-Spec buffer tube.
Cold hammer-forged alloy barrel with 1:8" twist rifling that provides exceptional accuracy with bullets from 35 to 77 grains. M4 feed ramps and 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition. The barrel and 1/2"-28 Ruger® flash suppressor have a matte black oxide finish to reduce glare and provide corrosion resistance.
Ruger® muzzle brake is a radial port design that significantly reduces felt recoil and muzzle movement. The threaded barrel allows for standard muzzle accessories to be installed.
Mid-length gas system provides smooth operation at a lower gas port pressure than a carbine system.
Also includes: one, 30-round Magpul® PMAG® magazine.

Operators Manual

21 Reviews. 4.8 out of 5 Stars!

5 Stars

86%

4 Stars

10%

3 Stars

2 Stars

1 Star

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Most Recent | Highest Ratings | Lowest Ratings

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Craig Y on 04/09/2024

Rating: 5 of 5 Stars!

Great rifle. Well made and assembled. Part interfaces are excellent, for example the fit of the bolt to the BCG and bolt lugs to the chamber. Has run flawlessly thus far. I did have to adjust the alignment of the rail atop the hand guard to the rail on the upper receiver, but that was easily enough done while cleaning off the excess oil before our first range trip.

Neil W on 03/12/2024

Rating: 5 of 5 Stars!

Very nice firearm , best shooting Rifle I own .

Brandon C on 02/27/2024

Rating: 5 of 5 Stars!

A very solid option if you want a complete out of the box package with reasonably priced quality, throw a grip and an optic and you're off!

Joshua H on 01/31/2024

Rating: 5 of 5 Stars!

Fantastic rifle, very soft shooting compared to my other AR. Compensator is very loud but I kinda like it lol.

Efren G on 01/17/2024

Rating: 5 of 5 Stars!

nice rifle shoots great

Richard J on 09/11/2023

Rating: 5 of 5 Stars!

Buds delivered as promised. Ruger is worth the money.

Trevor L on 08/26/2023

Rating: 5 of 5 Stars!

Great AR with expected quality build from ruger with a reasonable price. I've shot several hundred rounds without a glitch. Service from Buds was excellent as always.

Benjamin L on 08/25/2023

Rating: 2 of 5 Stars!

AVOID. Ruger for a long time has been suffering from QC problems and this is no exception. I had given up on Ruger years ago, but this AR got good reviews on Youtube, so I gave it a go. HUGE cosmetic blemish in the finish forward of the ejection port, about the size of a dime. Within 250 rounds down range, the dust cover cir clip disappeared and cover came loose. Screw for ambi-safety followed suit. Barrel suffers from subpar accuracy with all loads tested, averaging about 3 MOA. Buy a radical, and spend the rest on ammo.

Larry F on 08/06/2023

Rating: 5 of 5 Stars!

This was the make and model that I wanted. I have like minded friends that own this style/make/models and it is the best one in its price range. Buds had the best price and I was able to get mine. Very happy.

Dylan M on 07/28/2023

Rating: 5 of 5 Stars!

I got it on sale from Buds. Can't beat this rifle, excellent price point, and it offers everything the fancier rifles offer. Leaves you room in the budget to get all the attachments you want . Shoots straight, just like you expect.

Show More Reviews Write Review

Questions & Answers

Q: Is this compliant with Maryland Heavy Barrel requirements? Previous posted questions say yes but I don't see it on the Ruger site. Is the barrel stamped instead?
Answered

Asked 03/21/2024 08:16 by Rick M

A:

Hi Rick, no sir, this model does not have the heavy contour barrel. There are no MPR models with the heavy barrel. There is a Standard model and a Free Float model with HBAR & MD compliant.
https://www.budsgunshop.com/product_info.php/products_id/34869/ruger+ar+.223+remington+5.56+nato+16in+10rd ,
.
https://www.budsgunshop.com/product_info.php/products_id/114528/ruger+8537+ar-556+223+rem+5.56+nato+16.1+10+1+6-position+collapsible+stock+black+hardcoat+anodized ,
Stay safe & have a great day!
Q: Is the trigger adjustable from 4.5lbs to a lower setting? I'm not familiar with this trigger setup on an AR.
Answered

Asked 02/02/2024 21:10 by Leonard B

A:

Hi Leonard, The Ruger Elite 452® AR-Trigger is a two-stage trigger that offers a smooth, crisp, 4.5 pound trigger pull. It features a full-strength hammer spring for consistent primer ignition and a lightweight hammer that enables a faster lock time for improved accuracy.
It is not adjustable for a lower setting.
Stay safe & have a great day!
See 1 more answer |
Q: I’m looking to purchase this in the next few days, but want to make sure it is legal to ship and own in Colorado?
Answered

Asked 12/18/2023 18:01 by Joseph D

A:

Hi Joseph, it is compliant except for the 30rd magazine. If you buy it, Bud's will remove the magazine and you will have to get your own compliant magazines. Or you can buy this model with the 10rd magazine https://www.budsgunshop.com/product_info.php/products_id/114526/ruger+ar-556+mpr+556+18+black+10rd ,
Spare mags here https://www.budsgunshop.com/product_info.php/products_id/1127/magpul+mag559-blk+ar-15+pmag+gen+m3+10rd+.223+rem+5.56+nato+black ,
Stay safe & have a great day!
See 1 more answer |
Q: Does this gun shoot 223 also?
Answered

Asked 11/16/2021 11:36 by Roy C

A:

Yes, this is a 5.56 so it can safely shoot 5.56 or 223. Hope this helps.
See 2 more answers |
Q: what is twist rate on barrel?
Answered

Asked 09/17/2021 20:57 by brandon b

A:

Cold hammer-forged alloy barrel with 1:8" twist rifling that provides exceptional accuracy with bullets from 35 to 77 grains. M4 feed ramps and 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. ammunition. The barrel and 1/2"-28 Ruger® flash suppressor have a matte black oxide finish to reduce glare and provide corrosion resistance.
See 2 more answers |
Q: Does it have sling mounts or do I have to add that?
Answered

Asked 08/18/2021 16:31 by Joshua L

A:

The stock has a little hole in it to accept quick detach/qd sling mount. So all you'll have to buy is a qd sling mount and a one point sling. Hope this helps.
Q: Is this MD Complaint if Buds ships this with 10 Rd Mag?
Answered

Asked 05/26/2021 18:15 by MOHSIN M

A:

Moshin, yes Sir it is when shipped without the magazine. Maryland requires a heavy profile barrel which this has. Cheers and stay safe!
See 3 more answers |
Q: Is this the MD compliant version?
Answered

Asked 05/22/2021 17:57 by Joshua R

A:

Joshua, unfortunately not as configured Sir. It would be when Buds removes the 30rd Magazine (It has a Heavy Profile Barrel) : https://www.budsgunshop.com/feeds/state_reg/maryland_restrictions.pdf
Q: Can this safely fire .223 like the 8500 model?
Answered

Asked 04/29/2021 19:51 by David F

A:

David, yes it can. Any 5.56 rifle can also shoot .223, but not the other way around.
See 2 more answers |
Q: Hi since I didn’t have luck with my previous selection, could you please confirm that this firearm is permitted to use in Puerto Rico. If so, I’d like to purchase it. Thanks.
Answered

Asked 04/24/2021 14:27 by Edgard M R

A:

Edgard, this is not either Sir. In PR a semi-auto rifle with a detachable magazine and any two of the listed restrictions is not legal. This rifle has restrictions 1, 2 & 3 as listed under Rifles here : https://www.budsgunshop.com/feeds/state_reg/puerto_rico_restrictions.pdf
See 1 more answer |

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Ruger AR-556 MPR 5.56x45/.223 Rem 16.1" Black w/B5 Bravo Stock 30+1 - Blue/Black, 16.1" Barrel, 30 Rounds, Synthetic, Black Stock

Questions & Answers

Q: Is this compliant with Maryland Heavy Barrel requirements? Previous posted questions say yes but I don't see it on the Ruger site. Is the barrel stamped instead?

Q: Is the trigger adjustable from 4.5lbs to a lower setting? I'm not familiar with this trigger setup on an AR.

Q: I’m looking to purchase this in the next few days, but want to make sure it is legal to ship and own in Colorado?

Q: Does this gun shoot 223 also?

Q: what is twist rate on barrel?

Q: Does it have sling mounts or do I have to add that?

Q: Is this MD Complaint if Buds ships this with 10 Rd Mag?

Q: Is this the MD compliant version?

Q: Can this safely fire .223 like the 8500 model?

Q: Hi since I didn’t have luck with my previous selection, could you please confirm that this firearm is permitted to use in Puerto Rico. If so, I’d like to purchase it. Thanks.

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Ruger AR-556 MPR 5.56x45/.223 Rem 16.1" Black w/B5 Bravo Stock 30+1 - Blue/Black, 16.1" Barrel, 30 Rounds, Synthetic, Black Stock

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(21 Reviews) Rating 4.8 out of 5

Questions & Answers (10 Questions)

Questions & Answers

Q: Is this compliant with Maryland Heavy Barrel requirements? Previous posted questions say yes but I don't see it on the Ruger site. Is the barrel stamped instead?

Q: Is the trigger adjustable from 4.5lbs to a lower setting? I'm not familiar with this trigger setup on an AR.

Q: I’m looking to purchase this in the next few days, but want to make sure it is legal to ship and own in Colorado?

Q: Does this gun shoot 223 also?

Q: what is twist rate on barrel?

Q: Does it have sling mounts or do I have to add that?

Q: Is this MD Complaint if Buds ships this with 10 Rd Mag?

Q: Is this the MD compliant version?

Q: Can this safely fire .223 like the 8500 model?

Q: Hi since I didn’t have luck with my previous selection, could you please confirm that this firearm is permitted to use in Puerto Rico. If so, I’d like to purchase it. Thanks.

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