PRS-15 Echo – E300 EQR – The Echo Quiet Rifle

Feature Overview

The PRS-15 Echo Series is designed for use in law enforcement, military operations, or the sporting field, as well as, competitive shooting. The PRS-15 is a true AR platform tactical rifle. Provides unparalleled accuracy, with a Nitride treated barrel that provides maximum durability and corrosion resistance. A 7075-T6 aircraft grade aluminum forged lower receiver adds to the durability and reliability.

  • Direct impingement gas operating system with rotating locking bolt
  • 100% MADE IN THE USA
  • Echo Series Advanced Match Quality Barrels – Accuracy of 1-MOA or less
  • 4150 Chrome Moly Vanadium Steel
  • Black Nitride QPQ Corrosion Resistant Finish, Coated M4 Feed Ramp Extension, Coated Low Profile Gas Block, Coated Gas Tubes
  • Available in 5.56mm NATO and 300 Blackout Calibers
  • Light weight Free Float Enhanced Keymod Hanguards, available in 12.5″ and 15″ lengths
  • The KeyMod system allows advanced modularity past the current 1913 picatinny rail system. Engineered to mil-spec dimensions,eliminating bulk while retaining strength and stability.
  • Short Barreled NFA Rifle and Pistol options available
  • Our 300 Blackout version is available with matched suppressor options for a quieter experience
  • * Items in this series are coated in Black Nitride through the process knows as QPQ (also known in the industry as Ferritic Nitrocarburizing, Melonite, SBN “salt bath nitriding”)


ModelE300 EQR
Calibers300 Blackout
Barrel Lengthoptions 9 in - 12.5 in
Barrel ProfileMatch HBAR
Action Typesemi-auto
Trigger TypeMil-Spec
Collapsed lenoptions 24 in - 27.5 in
Stock TypeTelescopic 6-position collapsible M4 Stock
Trigger wt5.5-9.0 lb (24-40 N)
Twist Rate1 in 7
Forend Type7" & 12.5" Keymod Rifle Specialist Keymod Handguards
Grip TypeErgo Sure-Grip
Receiver & FinishForged 7075 Aluminum, Type III Hard Anodized
Expanded lengthoptions 27 in - 31.5 in
Overall Width2.6 in (66 mm)
Height7.5 in (191 mm)
Threads1/2 in - 28 tpi (5.56) 5/8 in - 24 tpi (300)
AccessoriesSingle point sling mount, magpul aluminum trigger guard
Operating SystemDirect Gas Impingement
Weight w/o Mag6.5 lb (2.9 kg)
Mags Included1 - 30rd Aluminum Mil-Spec Magazine

Feature Highlights

Spec Sheet PDF

SKUModelCaliberBarrel LenBarrel ProfileHandguardGrip TypeCollapsed LengthExpanded LengthThreadsWeight w/o MagSightsMSRP
PRS15-E300-12-T15-SBR-GMT300E300 EQR300 Blackout12.5 inMatch HBAR12.5" TRS KeymodErgo SureGrip27.5 in31.5 in1/2 in - 28 tpi6.5 lboptionalTBD
PRS15-E300-9-T15-SBR-GMT300E300 EQR300 Blackout9 inMatch HBAR15.5" TRS KeymodErgo SureGrip24 in27 in1/2 in - 28 tpi6.5 lboptionalTBD
PRS15-E300-9-T125-SBR-GMT300E300 EQR300 Blackout9 inMatch HBAR12.5" TRS KeymodErgo SureGrip24 in27 in1/2 in - 28 tpi6.5 lboptionalTBD
PRS15-E300-9-S7-SBR-GMT300E300 EQR300 Blackout9 inMatch HBAR7" samson evolutionErgo SureGrip24 in27 in1/2 in - 28 tpi6.5 lboptionalTBD

Other variations available

Echo Rifle

Echo SBR

Echo Pistol