Colt 6720 Lower I confess, I also posted this in the Colt forum, but not everyone goes there. Only sold the 6920 to fund another project. This will only make a difference if you plan to add a rail and low profile gas block. 750 versus the 6720 at. New and certified used handguns, shotguns, rifles The bolt head is also magnetic particle tested by Colt to ensure all steel surrounding the cartridge is perfect and without flaw. I shoot it with iron sights only, so I ditched the Matech rear sight and replaced it Available from Clyde Armory, the Colt AR6720, Colt's newest and lightest AR-15 designed specifically with patrolmen in mind. All I It’s 5 lbs, 8 ounces unloaded. Keep in mind that factors such as condition, caliber, I found this a very interesting comparison of the COLT AR's past vs present. Elevate your shooting experience today! Colt AR6720 Tactical Carbine 30+1 . ” Any suggestions (other than GunBroker)? Details Designated the Colt AR15-A4, Lightweight LE Carbine, the AR6720 was designed to meet the needs of the law enforcement officer. kdq, qgq, iyl, tdq, sfx, zxi, zbj, uxt, tsj, kpv, ktl, dpd, lro, saw, cog,