BG BLEM Complete 14.5" 300BLK Upper Receiver | A2 | 12" KEYMOD | With BCG & CH

Rating: Total Reviews: 0 Write a Review
Product Code: BGKM14530012A2-BLEM
List Price: $419.95
MSRP: $419.95
Sale Price: Sale Price: $199.95
Savings: $220.00
Click for Price

Builder's Grade Blemished 14.5" 300 Blackout Upper Receiver | 12" KEYMOD | A2 | With Bolt Carrier Group and Charging Handle

This complete upper receiver may be considered a pistol or SBR upper until a long enough muzzle device is permanently attached, providing a 16-inch Overall Length barrel.

Looking for a quality AR upper that is versatile, reliable, and affordable? Look no further than our 14.5" upper, which can be pinned and welded to meet the 16" OAL requirement.
Comes assembled with removable A2 Flash Hider.

This barrel is the perfect choice for those looking for a compact and maneuverable platform in close quarters (CQB) situations. Its shorter length makes it easier to move around corners and through tight spaces, while still providing exceptional accuracy and control.

One of the key advantages of our 14.5" barrel is its improved handling and balance. With a shorter overall length and reduced weight, this barrel is easier to control and maneuver. This can make all the difference in a high-stress shooting scenario, where split-second decisions and precise movements are critical.

The 14.5 inch M-LOK upper receiver comes with a 12 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 making the action smooth and easy to keep clean.

Caliber 300BLK
Length 14.5"
Material 4150 Chrome Moly Vanadium
Profile Medium
Finish QPQ Corrosion Resistant
Gas System Length Pistol
Gas Block Journal .750"
Dimpled? Yes
Twist Rate 1:7
Muzzle Thread 5/8x24 TPI
Weight 26.4oz
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 are pre-polished before being processed and then post polished for an incredible shine

Upper Receiver:

  • Hard Coat Anodized
  • M4 Feed ramps


  • 12" free float handguard
  • MIL-STD 1913 Picatinny rail on top
  • KeyMod slots on 3 sides
  • Precision Machined aircraft grade aluminum, for high strength and weight savings
  • Hard Coat Anodized per Mil-A-8625F, Type III, Class 2
  • Clamp on system for easy assembly
  • Steel Barrel nut to resist movement under heat
  • 11.7 oz with barrel nut and hardware
  • 1.35" Inside Diameter
  • 1.63" Wide
  • Made in USA

Charging Handle:

  • Alloy Charging Handle Assembly
  • Complete with Standard Latch
  • Made from hardcoat anodized aluminum
  • Black finish


Please Note: 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.***

All NFA/ATF Rules Apply

Depending on your state and local laws, you could use this barrel with a lower receiver that is a Registered SBR, or Pistol. Possession of this barrel along with a Non-NFA lower receiver may be Prohibited. We are not lawyers and the above information is not legal advise. Make sure you understand the most up to date federal, state and local laws before proceeding with this product.