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Barrel Extension with M4 Feedramps

In stock

Making your own barrel? Changing your feed ramps? Changing the caliber and chamber in some way? Well if this is the case, you might need a new barrel extension. Very hard to find these in Canada.

  • Hardened metal construction
  • Ground finish for high precision
  • Mil-spec
  • M4 feedramp profile
  • Weight: 48g
  • Dimensions: 28mm long × Ø29.7mm rim diameter × Ø25.4mm body diameter

You get:

  1. One barrel extension 

Compatible with:

  • All mil-spec AR-15 barrels 
  • All mil-spec uppers

Installation Difficulty:

Tools required: Head space gauges, barrel extension tool torque wrench, file, possibly a chamber reamer

Installation notes: This is not for the faint of heart. You need to align the feed-ramps to the gas port and attain correct chamber length all at the same time. This means lots of hand fitting, filing, sweating, swearing and beer. I cheat and machine a new gas port once the chamber is sorted to remove one variable at the cost of a lot of repairing.