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.
- Safety 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
- 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
- Disconnector Spring
- Hammer Pin & Trigger Pin
***Disclaimer: This made-to-order product may include minor component substitutions of military-specification quality or better. These changes, potentially differing cosmetically from shown images, ensure enhanced quality and performance. This may include ambidextrous sling loop endplates or an upgraded extra power spring.
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.***
