6″ Complete 300BLK Upper



Gas System: Low profile gas block, gas key with rounded leading edges ensuring positive functioning in all makes and grades of uppers and buffer tube combinations.
Bolt Carrier Group: Rounded cam pin rides in a fully chambered cam path. Properly staked and torqued grade 8 hex screws as per the true Mil-Spec. Carrier body OD and ID are hard turned after heat-treat to +/- .0005 inches. Bolt lugs are machined with the proper radius as per true Mil-Spec tolerances.
Charging Handle: Ambidextrous
Receivers: Lightweight, custom-matched billet upper and lower receivers, monolithic top rail
Caliber: .300BLK
Barrel: 6” Ballistic Advantage™ Performance series 300BLK barrel (machined from 4150 Chrome Moly Vanadium Steel and feature a Corrosion Resistant Finish and M4 Feed Ramp Extension. All barrels are HP and MPI tested)
Handguard: 6” low profile Modern Carbine™ monolithic free float M-LOK® handguard with proprietary barrel nut
Muzzle Device: SilencerCo™ ASR muzzle brake
Weight: 2.14 lbs
Warranty: All Brace Built Products come with a Lifetime Warranty.
Disclaimer: MC6 300 BLK will not cycle in subsonic if not suppressed. We are currently working on the best solution to add this feature to this rifle. Will still cycle unsuppressed in supersonic.


Color Options
O.D. Green Flat Dark Earth Burnt Bronze Tungsten Graphite Black
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Color Options

O.D. Green, Flat Dark Earth, Burnt Bronze, Tungsten, Graphite Black

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