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Questions & Answers
Will it screw onto the barrel of my Radical firearms 16" 300 blackout AR upper and how much does it add to the barrel length?

No. This is used to MAKE an AR barrel. You attach it and then drill the gas port. Also this is a product for large frame ARs, not small frames.

by Dev, Verified Owner, March 29, 2023
Will this extension work with the 6.5 mm PRC Cartridge.

Keep in mind that 6.5 PRC is longer than 6.5 Creedmoor and the round is too long to fit into a SR25/LR308 style magazine. You would need a special upper, lower, magazine, and a bolt that was based on the LR308 bolt and AR10 type carrier system for this to work. You can't just buy this extension and a .264" blank and expect to send it to a smith and end up with a functional large frame AR in 6.5 PRC. The 6.5 Creedmoor and .308 use a .407" bolt face. The 6.5 PRC uses a much larger .532" bolt face. A large frame bolt machined to fit that large of a case head would have a razor thin support around the bolt head. Kind of like how a 6.5 Grendel bolt looks. So I'm going with 99% NO as my answer.

by DevL, Verified Owner, April 27, 2023
Color:
Black

Code: J5-BPI-JPENT118-JPBX-308

MPN: JPBX-308

UPC: 812872020990

List: $89.95Save $4.50
$85.45

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OP Bucks$16.44

Product Info for JP Enterprises Jp Enhanced Barrel Extension, 7.62 Nato For .308/7.62,.260,6/6.5 Creedmoor

Developed During The Panic Of 2013 When 7.62 Barrel Extensions Were Difficult To Acquire, Our Jp Optimized Barrel Extension Came About As An Opportunity To Reexamine Another Standard Ar Item And Redesign It To Meet Our Exacting Standards. By Changing To A New Proprietary Steel With Alternative Heat Treatment, We Managed To Achieve A Strength And Toughness Not Previously Available With Destructive Testing Showing Significant Improvements To Both Duty Cycle Range And Maximum Failure Compared To The Extensions That We Previously Used. Moreover, By Incorporating Subtle Changes To The Geometry And Features, We Now Have An Extension Piece That Reduces Friction Upon Locking And Unlocking, Making The Operating System Easier To Load And Clear.image

Thanks To Results Like These, All Jp 7.62/308, .260, 6.5 Creedmoor And 6Mm Barrels Are Now Completed Using This New Optimized Barrel Extension. If You Are A Custom Gunsmith Engaged In Producing Custom Ar-10 Type Barrels Or Have A Custom Shop Producing Barrels For You, Don'T Limit Your Builds To A Standard Extension Piece. The Jp Optimized Barrel Extension Surpasses Any Extension Used By Any Other Manufacture To Date And Is The Only Choice For High-Grade Custom Builds.

-Alternate Steel And Heat Treatment Results In Higher Strength And Toughness

-Optimized Geometry Allows For Reduced Friction For Easy Operation

-Withstands 20% Higher Ultimate Failure Loads Than Standard Extensions

-35% Increased Lifespan

-Improved Metal Finish Eliminates The Need For Remedial Polishing

WARNING: California`s Proposition 65

Specifications for JP Enterprises Jp Enhanced Barrel Extension, 7.62 Nato For .308/7.62,.260,6/6.5 Creedmoor:

Manufacturer: JP Enterprises
Color: Black

Package Contents:

  • JP Enterprises Jp Enhanced Barrel Extension, 7.62 Nato For .308/7.62,.260,6/6.5 Creedmoor

JP Enterprises Jp Enhanced Barrel Extension, 7.62 Nato For .308/7.62,.260,6/6.5 Creedmoor Orderable Models

List of Orderable Models

  • JP Enterprises Jp Enhanced Barrel Extension, 7.62 Nato For .308/7.62,.260,6/6.5 Creedmoor, Black, JPBX-308 , MPN: JPBX-308 , UPC: 812872020990 , Code: J5-BPI-JPENT118-JPBX-308
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