The Strike Industries Stock Stop (Strike Industries part no. ARSTOCKSTO) is a black thermoplastic insert that converts a collapsible AR-platform stock into a fixed stock without drilling or pinning anything. Strike Industries molds it from a high-strength, abrasion-resistant thermoplastic that fills in all but one of the receiver extension’s position holes, so the stock physically can’t be adjusted to another length. It’s a low-profile piece that stays out of sight once installed, and it works with any aftermarket 6-position buffer tube or Strike’s own 7-position Advanced Receiver Extension. For a build that needs to stay at a fixed length for compliance or consistency, this is a simple, reversible way to get there.

Key Specifications

• Converts a collapsible stock into a fixed stock without drilling or pinning.
• Fills in all but one receiver extension hole, physically blocking length adjustment.
• Molded from high-strength, abrasion-resistant thermoplastic for a stop that holds up to repeated use.
• Compatible with any aftermarket 6-position buffer tube.
• Also compatible with Strike’s 7-position Advanced Receiver Extension.
• Requires no modification to the buffer tube itself.
• Built as a low-profile design that stays out of sight once installed.

Frequently Asked Questions

Will this work with my aftermarket buffer tube? Yes, it’s compatible with any aftermarket 6-position buffer tube or Strike’s own 7-position Advanced Receiver Extension.

Do I need to drill or modify my stock or tube? No, it installs without drilling, pinning, or any modification to the buffer tube.

Can I still adjust the stock length after installing this? No, that’s the point: it fills in all but one position hole so the stock stays fixed at that length.

Buy the Strike Industries Stock Stop

Some builds need a stock that stays put at a single length, and Strike’s thermoplastic stop gets you there without drilling into anything. Order from our Lubbock, Texas gun shop and it ships fast to your door, along with more rifle stocks.