Barrel Extension with M4 Feed Ramps
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
- M4 feedramp profile
- Weight: 48g
- Dimensions: 28mm long × Ø29.7mm rim diameter × Ø25.4mm body diameter
- One barrel extension
- All mil-spec AR15 barrels
- All mil-spec uppers
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.