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AR-15 5.56/.223 16" M4 LONG MLOK UPPER ASSEMBLY / 15" / TRIPORT
Product Code: MA556UA-15-TRI
AR-15 16" 5.56/.223 M4 MLOK UPPER ASSEMBLY
Chamber: 5.56 NATO/.223 Wylde
Twist Rate: 1/8 button rifled*
Muzzle Device: Thread 1/2 X28 muzzle brake
Barrel: 16" M4 contour, 4150V steel, chrome moly, heat treated, black, M4 feedramps, .750 gas block diameter
Handguard: Rifle length slim Mlok Free Float
A3 flat top upper receiver - Made from certified 7075-T6 aluminum forgings, black hardcoat anodized to gov. specs.; forward assist and dust cover installed
Gas System: Carbine Length Gas System /750 steel gas block
Does not come with BCG and Charging Handle. Can be purchased separately. Twist of the barrel may vary between 1/8 and 1/9, depending on stock availability.