16″ Carbine Length M4 5.56 Build Kit

$489.99 $464.99

AR15 Rifle build kit includes parts necessary to complete your 80 percent AR15 lower [not included].  16” M4 5.56 carbine-length gas upper features Magpul MOE Black Handgaurds and includes charging-handle, bolt carrier group, lower parts kit, and Magpul stock.

Not for sale in New York or New Jersey.

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SKU: AR15-BUILDKIT-16-M4 Categories: , , , , ,

Barrel
Material | 4150 CMV
Caliber | 5.56 NATO
Twist | 1:7
Length | 16"
Gas Block Type | F-marked Front Sight Base
Finish | Nitride
Thread | 1/2-28
Extension | M4

Upper Receiver
7075-T6 Forged Aluminum
Type III Hard Coat Anodizing
Assembled with Forward Assist and Dust Cover
M4 Feed Ramps
Magpul MBUS rear flip-up sight included


Handguard
Magpul MOE Black Handgaurds

Bolt Carrier Group
Full Auto bolt carrier profile. Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside.

Lower Parts Kit
Lower build kit with everything you need to assemble your AR-15 lower into a pistol.

Includes
Safety Selector | Detent | Spring
Magazine Catch | Button | Spring
Bolt Catch |  Buffer | Spring
Bolt Catch Buffer
Takedown | Pivot Pins | Springs [2] | Detents [2]
Buffer Retainer Pin | Spring
Magpul MOE Grip | Trigger guard 

Buffer Tube
7075 mil-spec carbine receiver extension
5-position adjustable
Castle Nut
Latch Plate
Standard Carbine Buffer
Carbine Length Spring

Additional Notes
16" 4150 CMV
Nitride treated
5.56 NATO Chamber
1 in 7" twist
Carbine length gas