jtallen83

Use one of these and you can go as short as you want on the barrel without the paperwork and still use a standard carbine buffer tube. https://www.sb-tactical.com/product/sba3/ I have a 12.5 inch build in the works with one of these right now. My Sig P716 has a 12.5 inch barrel but the piston system makes it a bit of a pig for such a short weapon. I like the MK 319 mod 0 ammo for the short stuff, designed specifically for short barrels. I haven't shot the 716 much past 250 yards or so but it does just fine and could most likely stretch out a bit more without a problem.

None taken, we enjoy being the little guy or rather the elite system There are different Matrix versions just like Armalite versions. My first Matrix has the Armalite thread pattern, second is DPMS. They look like Armalite pattern with the angled cut on the receivers but do not mate up. With no real standard for large frame AR's it can be a crap shoot for some parts but most interchange, different doesn't always mean it won't work.

Can they be made in different weights?

Can you do both large and small frame versions? I may just take you up on that come late summer/early fall when I will be around home a bit.

If I hear of some of those carrier weights becoming available I might drop it in the mail so the shipping can be cost averaged a bit, suckers are heavy!

Two DPMS AR-15 uppers pretty much ruined my AR-15 lapping tool they needed so much off. These tools are an expendable thing unless you get a machinist to reface them after wearing a groove and they would most likely charge as much or more than a new tool.

I have used that tool for a Matrix and Fulton Armory uppers, both LR-308's, with excellent results. The Fulton might not count as it was very even to start, more confirmed it was square than squared it.

Might find them cheaper elsewhere, that was just the handiest link.

They sure don't make it easy to contact them, got a phone number from google but no love yet.

Just ordered the SBA3 adjustable Sig brace for my pistol build. Came in a kit from PSA but I'll get an Armalite buffer system and save the extra parts for another AR-15 build. Figured I would need the adjustment more for locking in the brace than adjusting, my P716 would shove the brace clear onto the Phase 5 tube, even over the hex portion. This brace thing has really stretched the rules with the use of a carbine tube and being adjustable. http://palmettostatearmory.com/psa-sba3-moe-ept-pistol-lower-build-kit-black-5165448657.html?trk_msg=7P4MDLJMSJO45BAHLKK4NSNU5K&trk_contact=CCM1L42B6H11OTO9IV10FHBVDG&trk_sid=2HDO4SREML5CVNOEAH87GMUVO0&utm_source=Listrak&utm_medium=email&utm_term=http%3a%2f%2fpalmettostatearmory.com%2fpsa-sba3-moe-ept-pistol-lower-build-kit-black-5165448657.html&utm_campaign=Daily+Deal+Email&utm_content=12%3a00+Email

That looks like the fix I need. Just wish they would specify high or low, I would assume high but then I have a drawer full of assumptions. I will have to call them.

Don't use crush washers when using cans, possible to get alignment issues with them, use shims and a couple drops of Rocksett. http://www.advanced-armament.com/Shim-Kit--762mm_p_468.html

You just can't make that schit up! THAT is truth!

Yep, I really like those SLR tubes but have a hard time justifying the money on what amounts to an economy build.

Got the document sent in, thanks for the heads up on the discount. Not sure on the handguard but it is the leading candidate so far.