The Cross Armory CRSL Stock Lock Converter gives AR-15 and M4 owners a straightforward way to turn a collapsible buttstock into a fixed-position setup without replacing the stock. Machined from billet 7075-T6 aluminum with a low-profile black finish, this clamp-style adaptor locks solidly around the buffer tube and uses included Allen hardware to secure your chosen length of pull.

This converter is well suited for shooters in states that require fixed stocks, or for anyone who prefers a rigid, no-rattle stock for consistent cheek weld and repeatable positioning at the range or during training. It installs without permanent modification to the rifle, allowing you to configure a compliant, clean-looking build while relying on Cross Armory’s precise machining and thoughtful design.

Key Features:

• Manufacturer: Cross Armory
• Model: CRSL Stock Lock Converter
• Product Type: Stock Adaptor
• Material: 7075-T6 Aluminum
• Finish: Black
• Compatibility: AR-15 / M4 Adjustable Stocks