Pistol Build Kit - 9MM | Builder's Grade Complete 4.5" Upper Receiver with A2 | SB Tactical Pistol Brace | Bare Necessities Lower Parts Kit
BG Complete 4.5" 9mm Upper Receiver - Black | A2 | 4" M-LOK | With BCG & CH:
This Complete 4.5 inch M-LOK upper receiver comes with a 4 inch free float 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
|
Specifications
|
|---|---|
| Caliber | 9mm |
| Length | 4.5 |
| Material | 4150 Chrome Moly Vanadium |
| Profile | Straight |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | None |
| Gas Block Journal | N/A |
| Dimpled? | No |
| Twist Rate | 1:10 |
| Muzzle Thread | 1/2x36 TPI |
| Weight | 8.3oz |
| Barrel Extension | Integrated |
| Target Crown | 11 Degree |
Bolt Carrier Group:
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- Colt & Glock Compatible
- USA made 8620 Steel Carrier Construction
- Phosphated or Nitrided Finish
- Heavy Firing Pin Retaining Spring
- 13.7 oz.
Upper Receiver:
This .22LR / 9mm upper receiver assembly is made from forged 7075-T6 aluminum and is Hard Coat Anodized. It meets military specifications and comes in a true slick side configuration. The ejection port door is sized for 9mm and 22LR. This upper does not have a shell deflector, nor does it have a forward assist.
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Machined from a Mil-Spec 7075 T6 forging
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Type III Hardcoat Anodized finish
Handguard:
- 4" free float handguard
- MIL-STD 1913 Picatinny rail on top
- 1 M-Lok slots on 3 sides
- Precision Machined aircraft grade aluminum, for high strength and weight savings
- Steel Barrel nut to resist movement under heat
- Made in USA
Charging Handle:
- Alloy Charging Handle Assembly
- Complete with Standard Latch
- Made from hardcoat anodized aluminum
- Black finish
SB Tactical Pistol Brace - SBA3, SBA4, or SBA5 Pistol Brace + Tactical Sport Mil-Spec Buffer Tube Kit:
- SB Tactical Adjustable Pistol Stabilizing Brace
- Complete Tactical Sport Buffer Tube Assembly Kit
- Carbine buffer (3 oz)
- Carbine buffer spring
- Carbine stock end plate
- Carbine stock lock ring-castle nut
Bare Necessities Complete AR15 LPK:
This BN Lower Parts Kit is what you need to build a custom AR15 from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.
- Takedown/pivot Spring
- Takedown/pivot detent
- Trigger/hammer pin
- Takedown pin
- Pivot pin
- Bolt Catch
- Bolt Catch Spring
- Bolt Catch buffer
- Bolt catch roll pin
- Safety Selector
- Safety Selector spring
- Safety Selector detent
- Buffer retainer
- Buffer retainer spring
- Trigger guard
- Trigger guard roll pin
- A2 pistol grip
- Pistol grip screw
- Pistol grip lock washer
- Trigger spring
- Hammer spring
- Disconnector spring
- Magazine catch body
- Magazine catch spring
- Magazine catch button
- Hammer
- Trigger
- Disconnector
Uppers may present light fouling from our quality control process and/or test firing
***Please allow an additional 2-3 business days of lead time as these uppers are made to order.***
