AR-15 4.5" Micro APR Suppressor Ready Pistol Upper Assembly – Choose Caliber & Color

Micro ARP Uppers

AR-15 4.5" Micro APR Suppressor Ready Pistol Upper Assembly – Choose Caliber & Color

The AR-15 4.5" Micro APR Suppressor Ready Pistol Upper Assembly is a compact, high-performance upper, perfect for building your next pistol-caliber AR. Crafted from 4150 CrMoV steel and finished with black nitride, this upper assembly offers unmatched durability, reliability, and accuracy. Available in 5.56, 300 blackout, 7.62x39 and 338 Arc calibers. 

• Available in FDE, Burnt Bronze, OD Green, Tungsten Gray, Blue Titanium Cerakote and Black Hard Coat Anodize

Key Features:

• Chamber: Choose your preference on top of page

• Barrel:

  • 4.5" Barrel made from 4150 CrMoV steel for ruggedness and durability
  • Black nitride finish for increased corrosion resistance and barrel longevity
  • Threaded 1/2 - 28 for 5.56 and 5/8x24 for 7.62, 300, and 338 Arcc
  • Muzzle Device: A2

• Upper Receiver:

  • Moriarti Flat Top Receiver made from certified 7075-T6 aluminum forgings, ensuring strength and rigidity
  • Black hardcoat anodized finish for added resistance to wear and tear
  • Equipped with forward assist and dust cover for smooth operation and protection against dirt and debris
  • M4 feedramps for enhanced reliability and smooth feeding of rounds

• Gas System:

  • Micro gas system for reduced size and optimal performance in compact builds
  • Gas Block: 750 Low Pro Steel, black anodized for added durability

• Handguard:

  • 4.25" Integral Hand Stop (IIHS) M-Lok Free Float Hand Guard
  • Black anodized finish for additional corrosion resistance

• No BCG and/or Charging Handle included (both sold separately)
• Images may not be the exact representation of the product as mlok design may vary based on stock availability