Barrel Extension Pin
If you are adventurous and are installing your own Barrel Extension, this is the last little piece that you need. This pin helps to orient the barrel into the upper receiver, aligning the feed ramps with the feed ramps in the upper. This is critical for M4 feedramps.
- Hardened metal
- Chamfered ends for ease of installation
- Weight: Two pixies
- Dimensions: Ø3.19 × 4.65mm long
- One Barrel Extension Pin
- All mil-spec barrel extensions
- All mil-spec uppers (standard and M4 profile)
Tools required: Hammer or press to install the pin into the barrel extension
Installation notes: Take your time and drive 'er home squarely in the right position.