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Pistol Build Kit - 9MM | 4.5" Complete Upper Receiver w/A2| AA Stabilizer Fin | TS LPK

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Product Code: RBK-BG459MM4INA2-BLK-GDPSB-TS
MSRP: $499.90
Sale Price: Sale Price: $299.95
$299.95
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Pistol Build Kit - Builder's Grade Complete 4.5" 9MM Upper Receiver | A2 | 4" M-LOK | BCG & CH | Always Armed Black Pistol Stabilizer - Fin | Tactical Sport Lower Parts Kit


Complete 4.5" 9MM Pistol Upper Receiver | A2 Flash Hider | 4" M-LOK | BCG & CH:


This Complete 4.5 inch M-LOK upper receiver comes with our Builder's Grade 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.

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:

    • 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.

  • Machined from a Mil-Spec 7075 T6 forging
  • 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


Always Armed Black Pistol Stabilizer - Fin:

This pistol stabilizer is made from glass-reinforced polymer and built to exact tolerances. That attention to detail means the Fin fits on all pistols equipped with a standard AR15 buffer tube up to 1.25" in diameter without any need for special receiver extensions. Just slide the stabilizer on and tighten the alan key set screw for quick, secure installation.

Features:

  • Fits pistols with standard (up to 1.25" diameter) buffer tubes
  • Weighs just 5.7 ounces
  • ATF-approved for pistol used

 

 

Complete Mil-Spec LPK

Quality Lower Parts Kit that includes the following:
 

  • 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

 

*May come with standard “tear-drop” endplate OR ambidextrous sling loop endplate based on component availability.



Please Note: Uppers may present light fouling from our quality control process and/or test firing
SKU:
RBK-BG459MM4INA2-BLK-GDPSB-TS