Rock Island Armory TM22-A-18 TM22 .22 LR Rifle

A: Mark, according to rock island armory it's 1/2×28. Just watched a video of rock island armory showing off the rifle and they definitely said 1/2×28. You could try contacting them at (775) 537-1444 or email them at ( support@armscor.com ). Hope this helps.

A: Mark, for an accurate answer, I would contact RIA, (775) 537-1444 OR email SUPPORT@ARMSCOR.COM

A: Mark, We're just customers as yourself not buds employees, so we're most likely looking at the same info online as you are. I doubt buds customer service would be able to assist you either. So unfortunately rock island armorys customer service would be your best option to find out. If they aren't any help the only other option would be to take it to a gunsmith and they'll be able to tell you. Sorry but hope this helps some.

A: Mark, if you have a digital caliber you could also try measuring your thread pitch size. There's forums online showing how to do so.

A: I couldn't find anything definitive, but I did find an article at silencer shop that states that CZ and some other European manufacturers use ½x20 thread pitch (this RIA is made in turkey not exactly EU territory but they may have used a European threading) of this is the case you need an adapter, in stock here https://hughesprecision.com/product/12-20tpi-id-barrel-thd-to-12-28tpi-od-thd-adapter-thread-converter/

A: Mark, Rock Island Armory U.S.A should be able to answer this accurately at Phone: (775) 537-1444 or by email inquiry here : -- SUPPORT@ARMSCOR.COM

A: M-Lok (short for Modular Lock) is a mounting system that allows you to attach accessories- like an optic, laser, flashlight, or bipod - to a negative space mounting point. And yes, they're many to choose from if you wanted to swap it out.

A: Hi James and welcome. It is an accessory slot attachment type. Key-Mod, M-LOK, Magpul are some slot types. It just means you need direct M-LOK based attachments or M-LOK based Picatinny rail slots (Various lengths available here): https://www.budsgunshop.com/search.php/q/mlok+rail

A: James, M-LOK, for Modular Lock, is a firearm rail interface system developed and patented by Magpul Industries. Compared to the Picatinny rail system, both M-LOK and KeyMod enable the user to have a slimmer, lighter, smoother and more fenestrated handguard/fore-end with accessories mounted only where needed, whereas a Picatinny handguard typically will have rail slots for its whole length, resulting in a heavier and bulkier handguard with sharp edges and poorer barrel ventilation. This gun is not compatible with other handguards, so you won't be able to swap it out. Just make sure any accessories you add are M-Lok compatible. Stay safe & have a great day!

A: Hi Gerald, no sir, due to the pistol grip and threaded barrel. budsgunshop.com/feeds/state_reg/massachusetts_restrictions.pdf , Stay safe & have a great day!

A: Hi Gerald and welcome. Unfortunately, not with the Threaded Barrel and Pistol Grip. Details under Rifles here : https://www.budsgunshop.com/feeds/state_reg/massachusetts_restrictions.pdf ---------------- Cheers and stay safe!

A: It most certainly is. It is found on a number of NJ FFL shops where you can go by and pick it up.

A: Hi Andrew and welcome. Yes Sir, as configured, it is NJ legal to purchase/own. Cheers, stay safe and enjoy!

A: Hi Andrew, the is NOT NJ compliant. It has a threaded barrel AND a pistol grip. You cannot have more the 1 'evil' feature on a semi-auto rifle in NJ. If you find it for sale locally, the thread protector has been pinned/welded to make it compliant, but is NOT compliant as it sits. I am a NJ resident and know the laws here very well. budsgunshop.com/feeds/state_reg/new_jersey_restrictions.pdf , Stay safe & have a great day!