6.8 SPC Question

Donnelly · 08-07-2008

OK, this might have already been addressed, but if so I must have missed the thread. I know on the AR-15 platform that a 6.8 SPC upper can be switched out in place of the 5.56 upper. My question is, is there any size issue with the magazine well on a standard (5.56) lower, and do the standard 5.56 magazines work? The cartridge brass looks awfully similar until you get to the bullet. Anyone with 6.8 SPC experience willing to sound off?

turnandshoot4 · 08-07-2008

The mags work but can cause jams due to the follower. The follower is thinner (I think) on the 6.8 mag. Maybe you can do a follower replacement to prevent this issue. You will get 25-28 per 30 round 5.56 mag.

obijohn · 08-11-2008

limited trigger time with a 6.8, but the magwell is good to go. most will require dedicated 6.8 magazines, but one of the ideas of the 6.8 was to be able to retrofit existing m16/ar15 rifles.

08-07-2008	#1 (permalink)
Donnelly Plinker Join Date: May 2008 Location: Logansport Posts: 150	6.8 SPC Question OK, this might have already been addressed, but if so I must have missed the thread. I know on the AR-15 platform that a 6.8 SPC upper can be switched out in place of the 5.56 upper. My question is, is there any size issue with the magazine well on a standard (5.56) lower, and do the standard 5.56 magazines work? The cartridge brass looks awfully similar until you get to the bullet. Anyone with 6.8 SPC experience willing to sound off?

08-07-2008	#2 (permalink)
turnandshoot4 Expert Join Date: Jan 2008 Location: 65 and SR 10 Posts: 1,166	The mags work but can cause jams due to the follower. The follower is thinner (I think) on the 6.8 mag. Maybe you can do a follower replacement to prevent this issue. You will get 25-28 per 30 round 5.56 mag. Last edited by turnandshoot4; 08-07-2008 at 17:29. Reason: I'm a tard.

08-11-2008	#3 (permalink)
obijohn Patriot, Pater, Plinker Join Date: Mar 2008 Location: Terre Haute Posts: 801	limited trigger time with a 6.8, but the magwell is good to go. most will require dedicated 6.8 magazines, but one of the ideas of the 6.8 was to be able to retrofit existing m16/ar15 rifles. __________________ NRA Patron Member NRA Certified Instructor USPSA NROI Adaptive Consulting & Training To prevail...you must ACT! www.adaptiveconsultingandtraining.com Wabash Valley Practical Pistol Shooters Riley Conservation Club

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