Complete Uppers

Uppers Feature Overview

Our upper receivers are all machined from USA manufactured forgings to precise tolerances and hand sanded & de-burred before anodizing, to make a smooth fit & finish. Precision machined parts fit together to produce a more accurate overall weapon. Only the finest quality barrels are utilized, precision chambered for our customers.

  • 100% Made in the USA – all of it – every pin, spring, and even the plastic stocks are injection molded for us in the USA.
  • Mil-spec Forged 7075 aluminum, type III anodized receivers
  • Hand-fitted parts for the tightest mating of surfaces ensuring the most accurate weapons.
  • Parts are machined to tighter tolerances than many other brands, increasing accuracy and longevity.
  • All upper receivers have M4 cut feed ramps for increased feed reliability.

The PRS-15 M4 Uppers

Available in 5.56mm NATO - Alpha, Bravo and Delta variations

  • 16″ & 11.5″ Phosphated M4 profile Barrels
  • The Traditional M4 service weapon
  • Carbine Handguards
  • Mil-spec MP tested Bolt & properly staked BCG

The PRS-15 Echo Uppers

Available in 5.56mm NATO and 300BLK calibers

  • 16″ , 12″, 9″ and 7.5″ Black Nitride coated Match grade HBAR Barrels
  • Continuous full length top rail – compatible with night vision scopes
  • Rifle Specialist MLOK custom free float Gen2 handguards
  • Mil-spec MP tested Bolt & properly staked BCG

The PRS-15 Echo SBR/Pistol Uppers

Available in 5.56mm NATO and 300BLK calibers

  • 12.5″, 9, and 7.5″ Black Nitride coated Match grade HBAR Barrels
  • Continuous full length top rail – compatible with night vision scopes
  • Rifle Specialist custom free float keymod handguards
  • Mil-spec MP tested Bolt & properly staked BCG
  • Suppressor packages available

The PRS-15 Omega Uppers

Available in 5.56mm NATO caliber

  • 20″ & 24″ Black Nitride coated Match grade Stainless Heavy Bull Barrels
  • Continuous full length top rail – compatible with night vision scopes
  • Rifle Specialist MLOK custom free float Gen2 handguards
  • Mil-spec MP tested Bolt & properly staked BCG
  • Suppressor packages available