16″ CARBINE LENGTH M4 5.56 NITRIDE BUILD KIT – BLACK
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 to residents of the states of New York or New Jersey.
Out of stock
Note: your jurisdiction may require you to be a licensed FFL or licensed gunsmith to purchase this product.
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
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
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.
Safety Selector | Detent | Spring
Magazine Catch | Button | Spring
Bolt Catch | Buffer | Spring
Bolt Catch Buffer
Takedown | Pivot Pins | Springs  | Detents 
Buffer Retainer Pin | Spring
Magpul MOE Grip | Trigger guard
7075 mil-spec carbine receiver extension
Standard Carbine Buffer
Carbine Length Spring
16" 4150 CMV
5.56 NATO Chamber
1 in 7" twist
Carbine length gas