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FMK AR-1 Extreme AR-15 Multi Caliber Polymer Lower Dark Earth - FDE/Tan


FMK AR-1 Extreme AR-15 Multi Caliber Polymer Lower Dark Earth

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Multi-Caliber, Mil-Spec, AR15 Lower Receiver, manufactured in the USA of a high impact proprietary composite polymer. This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight only 4.3oz. The AR1 eXtreme is by far the strongest composite polymer lower on the market today. The key to any good project is the foundation and on an AR15, that is the lower receiver. The Ar1 eXtreme comes with a lifetime warranty; and of course, it’s Proudly American.


Product Specifications
  • 850979004260
  • FMK Firearms
  • AR-15
  • Semi-automatic
  • Lower
  • 556NATO
  • 223 Rem
  • N/A
  • Flat Dark Earth
  • Polymer

Our Price
$58.99
Financing Available
MFG: FMK Firearms
Model: FMKGAR1EDE
Bud's Item Number: 719002748
UPC: 850979004260
ADD TO CART
Retail Store Availability
In-Store Purchase Only
Lexington, KY Not in store
Greenville, KY Not in store
Sevierville, TN Not in store
6 Reviews

FMK AR-1 Extreme AR-15 Multi Caliber Polymer Lower Dark Earth
Multi-Caliber, Mil-Spec, AR15 Lower Receiver, manufactured in the USA of a high impact proprietary composite polymer. This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight only 4.3oz. The AR1 eXtreme is by far the strongest composite polymer lower on the market today. The key to any good project is the foundation and on an AR15, that is the lower receiver. The Ar1 eXtreme comes with a lifetime warranty; and of course, it’s Proudly American.


Product Specifications
  • 850979004260
  • FMK Firearms
  • AR-15
  • Semi-automatic
  • Lower
  • 556NATO
  • 223 Rem
  • N/A
  • Flat Dark Earth
  • Polymer

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6 Reviews. 4 out of 5 Stars!
5 Stars
67%
4 Stars
0%
3 Stars
17%
2 Stars
0%
1 Star
16%
Write Review
Sheena C on 03/29/2023
Rating:   3 of 5 Stars!

Nice looking but TIGHT. Really had to convince some lower parts to get in there. I think the rear takedown hole was also too tight as I cannot remove the pin or insert it without considerable force. If you dont mind having to do some tweaks or sanding, go for it. This is only my second build so im comparing it to the ease of the first stripped lower I had, where everything fit perfectly like a puzzle piece, no tweaks. For the price I guess you can't complain too much but the aggravation landed it in 3 stars territory.

Mark G on 06/27/2019
Rating:   5 of 5 Stars!

I ordered this lower and was disappointed that it was polymer. I used it anyways and it went together nicely needing some minor filing in the area of the bolt release. I've had more trouble with metal lowers. It fits my upper well and shoots beautifully. I haven't been able to break it at 3-Gun, but am trying. This is a quality product and you should not shy away from it because it is polymer. You won't be disappointed.

William M on 02/24/2018
Rating:   5 of 5 Stars!

Dimensions are perfect. Threads, holes and cut-outs are clean and do not require any additional removal of material. Tighter than a few of the factory built lowers I have seen recently.

Victor S on 07/23/2016
Rating:   1 of 5 Stars!

This product is garbage, I should of belived all the reviews online. They where saying that it doesn't hold up and breaks . Well it's true after on 90 rds there is cracks and stress fracture on the polymer near the take down pin. I don't know how people can give this product a good review. It's not deserving, at first glance t looks promising but it's crap. Now I have to contact the company and have it replaced, let's see if they honor their lifetime warranty. As for buds they were great as always.

John T on 04/13/2016
Rating:   5 of 5 Stars!

Would give this product six stars if I could! I own 3 of these currently and plan to gobble up more before they're banned in California. Unlike other polymer lower receivers, the finish is smooth and well crafted. There aren't any burred surfaces or edges, just a nicely molded piece. Also, the hole sizes and placements are awesome. I've only used Bushmaster LPKs on these stripped lowers and they work like a charm. Haven't mustered the courage to use a different LPK on this yet but you can't go wrong between this and a Bushmaster LPK. Over, highly recommend for those curious. For ~$ 50 plus transfer fees and background check, you can't go wrong!

Hugo M on 03/10/2016
Rating:   5 of 5 Stars!

Very impressed with the lower. It's sturdy the holes are perfect. One of the best polymer receivers I own. Buds did an excellent job with keeping me in touch with updates. Super fast shipping

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