What buffer and spring setup is supplied?
What buffer and spring setup is supplied?
Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
Buffer is unmarked, and weighs 5.4 oz.
Spring is stronger than M4 version but I have no way to measure.
Yeah, mine is also unmarked. Been considering a heavier one to ease some of the bounce, but hate to mess with what works.
Moon
Does it have a spacer at the other end of the spring to limit stroke?
Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
Uni:
We have PM'd recently.
Two points. I use the 20s for USPSA mandatory reloads. First mag is a 20 with magpuls, then a better grip with 32s for the reload.
Also, I didn't mention that I e-filed the gun to 10.5, if you can, it handles much better. Probably why their subguns are 10.5.
Of course I made a mistake on the form and got rejected in 17 days. Good people, I refiled that day and the examiner turned it around in 15 minutes.
jon
I did my FFA via snail mail and paper, and it took 9 months...this was in the run-up to the 2016 election, but still, that's absurd. The electronic filing was not working at that point.
p7fl, concur entirely, it's a whole different critter with the buzz-gun barrel length; handles better, looks right, and likely gives up little muzzle velocity. There's not a soul who's shot mine that didn't want one.
Moon
I SBR’d mine and added a heavy buffer( 7 oz if I recall) and runs great... Eats 147 Fed HST fine.F13A507B-5DB1-42BE-A3FF-7869EE5420F3.jpg
I scored a LNIB (2 mags through it), 1 Colt mag and 2 metal forms for $1,100...also came with a Geissele (B-GRF). An item of note...the AR6951 does not like after-market triggers. The B-GRF isn't on Geissele's website and can only purchase through Brownells.
I installed an extra LE6920 trigger and that mitigated all the problems I was experiencing...FTE, trigger not resetting and multiple round bursts. Through my research, another 6951 owner had experienced the same exact issues using the exact same Geissele (B-GRF) trigger...he too reinstalled the USGI trigger and problems ceased.
'Dave, what is the weight of the OEM buffer?
Anti', been running a Geissele SSA in mine, with no drama whatsoever. Geissele is non-commitial about this issue, but the Colt does have a ramped bolt, and mine has been fine.
Moon
Bookmarks