The Firing Line Forums - View Single Post - Comprehensive list of current AR15 makers who offer 6.8 and 6.5G

tirod · June 6, 2014, 10:57 AM

The LWRC is not AR15 milspec and uses their proprietary larger magazine made by Magpul. That is considered a good thing - but - the difference locks you into that system.

Some complain they can't reload out to a certain spec with metal mags in standard lowers. The counterpoint is that it's an incremental difference that costs a lot of money for a small return. Most ammo sold is SAMMI spec and with 50% more power than 5.56 many don't need to gild the lily.

LWRC made them that way because it was a contract requirement by the government who specified it - they didn't want mags interchangeable among guns used by their soldiers. Tends to mess them up.

List of 6.8 makers: http://68forums.com/forums/showthrea...8-Rifle-Makers

It should be pointed out that looking for both 6.8 and 6.5 communicates that the purpose of the gun - if singular - isn't focused to a specific range and target. The cartridges were designed for diametrically opposite purposes, one as a higher power substitute for the service round in NFA barrels, the other as a long range precision competition round.

So, what target is the gun going to be used for 85% of the time, and at what ranges? It makes a difference.

June 6, 2014, 10:57 AM	#4
tirod Junior member Join Date: January 21, 2009 Posts: 1,672	The LWRC is not AR15 milspec and uses their proprietary larger magazine made by Magpul. That is considered a good thing - but - the difference locks you into that system. Some complain they can't reload out to a certain spec with metal mags in standard lowers. The counterpoint is that it's an incremental difference that costs a lot of money for a small return. Most ammo sold is SAMMI spec and with 50% more power than 5.56 many don't need to gild the lily. LWRC made them that way because it was a contract requirement by the government who specified it - they didn't want mags interchangeable among guns used by their soldiers. Tends to mess them up. List of 6.8 makers: http://68forums.com/forums/showthrea...8-Rifle-Makers It should be pointed out that looking for both 6.8 and 6.5 communicates that the purpose of the gun - if singular - isn't focused to a specific range and target. The cartridges were designed for diametrically opposite purposes, one as a higher power substitute for the service round in NFA barrels, the other as a long range precision competition round. So, what target is the gun going to be used for 85% of the time, and at what ranges? It makes a difference.