The Q Taper Adapter (brand part no. TA-1752-5/8) is a muzzle accessory built by Silencers by Q for shooters whose barrel has a tapered muzzle shoulder but who need a traditional 90-degree square shoulder for a silencer mount. Rather than stacking shims to make a tapered muzzle work, this adapter converts a scientifically engineered 5/8-24 or M18-1.5 muzzle into a standard square shoulder in one step, letting shooters run mounts and silencers designed around a conventional shoulder without machining the barrel. It’s machined from 17-4 stainless steel and heat-treat coated, so exact color can vary slightly between units. This adapter itself is an ordinary mounting accessory, not a suppressor or other Title II regulated part.

Key Specifications

• It converts a tapered muzzle shoulder into a standard 90-degree square shoulder.
• It’s threaded 5/8-24 to match Q’s scientifically engineered muzzle system.
• It’s machined from 17-4 stainless steel for durability.
• It carries a heat-treat coating, with color that may vary slightly between units.
• The adapter measures approximately 2.7 inches in length.

Frequently Asked Questions

Is this adapter itself an NFA item? No, this is an ordinary mounting adapter; it is not itself a regulated Title II item.

What problem does this adapter solve? It converts a tapered muzzle shoulder into a traditional 90-degree square shoulder needed by many silencer mounts.

Buy the Q Taper Adapter

Get a proper square shoulder for your silencer mount with the Q Taper Adapter. Shop more Q LLC Class 3 parts and accessories and get fast shipping from our Lubbock, Texas gun shop.