Rifle Build Kit - 5.56 | 16" Complete Upper Receiver with A2 | M4 6 Position Stock and Buffer Tube Kit | Bare Necessities Lower Parts Kit
Complete 16" 5.56 Carbine Upper Receiver | 15" M-LOK | BCG & CH:
This Complete 16 inch M-LOK upper receiver comes with the Always Armed 15 inch free float Octo Series handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.
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Barrel
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Specifications
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|---|---|
| Caliber | 5.56 |
| Length | 16" |
| Material | 4150 Chrome Moly Vanadium |
| Profile | M4 |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | Carbine |
| Gas Block Journal | .750" |
| Dimpled? | No |
| Twist Rate | 1:7 |
| Muzzle Thread | 1/2x28 TPI |
| Weight | 27.2oz |
| Barrel Extension | M4 Feed Ramps |
| Target Crown | 11 Degree |
Bolt Carrier Group:
- Enhanced 9310 Steel (Bolt)
- 8620 Tool Steel (Carrier)
- Bolt is shot Peened and MPI
- All BCG components pre polished before being processed and then post polished for an incredible shine
Upper Receiver:
- Machined from a Mil-Spec 7075 T6 Forging
- Hard Coat Anodized per Mil-A-8625F, Type III
- M4 Feed ramps
Handguard:
- 15" Lightweight - Free Float M-LOK
Charging Handle:
- Alloy Charging Handle Assembly
- Complete with Standard Latch
- Made from hardcoat anodized aluminum
- Black finish
Tactical Sport 6-Position M4 Stock Kit:
This polymer stock is made from impact-resistant, high-strength material.
- Mil-spec Diameter Extension Tube Made from Aircraft Aluminum with Rolled Threads
- Built for Heavy-duty Operations with Tightest Tolerance Control
- Stock Assembly Complete with Action Spring, Buffer Assembly, Tear-drop Ring, and Castle Nut
Bare Necessities AR15 Complete Lower Parts Kit:
With everything you need for a complete lower, including every spring, pin, the BN LPK makes your rifle truly complete by including the all-important Safety, Mag Catch, Hammer and Trigger, Take Down, and A2 Standard Grip.
Components:
- Disconnector Spring
- Hammer Pin & Trigger Pin
- Selector
- Selector Spring
- Selector Detent
- Magazine Catch
- Magazine Catch Spring
- Aluminum Magazine Catch Button
- Bolt Catch
- Bolt Catch Detent
- Bolt Catch Spring
- Bolt Catch Roll Pin
- Take Down Pin Take Down Detent
- Take Down Detent Spring
- Front Pivot Pin
- Front Pivot Pin Detent
- Front Pivot Pin Detent Spring
- Aluminum Trigger Guard
- Trigger Guard Roll Pin
- Buffer Retainer Detent
- Buffer Retainer Spring
- A2 Pistol Grip
- Pistol Grip Screw
- Pistol Grip Lock Washer
- Trigger
- Trigger Spring
- Hammer
- Hammer Spring
- Disconnector
*This product is manufactured based on parts on hand. It may feature a standard or oversized trigger guard, depending on what we have available at the time. Also, it may have a standard curved trigger or a flat trigger.*
Please Note: Uppers may present light fouling from our quality control process and/or test firing
