Griffin Armament 3-Lug Adapter 13.5x1 LH – Quick-Attach Suppressor Mount

The Griffin Armament 3-Lug Adapter provides a fast, repeatable mounting solution for suppressors on firearms with 13.5x1 left-hand threads. This adapter replaces your existing muzzle device and allows toolless attachment and removal of compatible 3-lug suppressors, making it ideal for shooters who need to move suppressors between multiple host firearms or require rapid on/off capability in the field.

Machined from hardened steel with a durable finish, this adapter is precision-engineered to maintain zero and provide a secure lockup with each installation. The 13.5x1 left-hand thread pitch is commonly found on certain pistol-caliber carbines and imported firearms. Verify your barrel threading before purchase. Installation requires proper torque and timing. Note: This is a mounting device only—suppressor sold separately. Users must comply with all NFA regulations regarding suppressor ownership and use.

• Type: 3-Lug Suppressor Adapter
• Thread Pitch: 13.5x1 Left-Hand
• Material: Hardened Steel
• Function: Quick-Attach/Detach Mount for 3-Lug Suppressors
• Compatibility: Firearms with 13.5x1 LH Threading