Pin and Weld Service

Pin and Weld Service

Black Ankle Munitions can help with all your AR barrel Pin and Weld Service needs. The pin and weld service is generally utilized to permanently attach a muzzle device to barrels less than 16″ to allow them to meet the 16″ minimum requirement to be considered a rifle by the BATFE. This service permanently extends the measured length of your barrel and keeps you from needing to use a pistol brace or registering your firearm as a short-barrel rifle (SBR). The most common barrel lengths sold that can be pin and welded are 13.7″, 13.9″, and 14.5″ barrels. All pin and weld jobs are completed using a MIG welder.

*NOTE: Once the pin and weld is complete, you will no longer be able to remove the gas block or barrel nut.

In order to pin and weld your muzzle device to your barrel, you must either purchase from Black Ankle Munitions or supply the following items:

• Barrel
• Barrel Nut
• Gas Block
• Muzzle Device – Uninstalled and preferably brand new

Before shipping, please ensure that all parts are included and carefully packaged so they do not get lost in transit. Please ship your items only via USPS or UPS.

Send parts to the following:
Black Ankle Munitions
672 County Road 105
Scottsboro, AL 35768

Turnaround time on this service is approximately 3 business days.

*Make sure to purchase RETURN SHIPPING when placing your order.
**We do NOT install on aluminum or titanium muzzle devices.
**This service is for barrels that do not already have a muzzle device pinned and welded. If you are looking to have a muzzle device swapped out, please contact us before purchasing as this will be an extra fee.