The Briley Magazine Extension to barrel clamp (12 gauge) is fully machined from 6061 Aluminum and anodized black.

It is designed specifically for our diameter extensions and is not guaranteed on other manufacturers' extensions.

It is supplied in a kit form where you can either use it as a clamp only or with an additional attachment for a sling swivel. The hex head cap screw is for the clamp style only and the drilled head screw together with a washer and spacer are for the sling swivel. The barrel side of the clamp should be compatible with most auto barrels.

Available in:

• Matte Black
• Polished Black