⚠️ IMPORTANT SAFETY RECALL NOTICE
Product Recall Notice: Chamber Lock
We’ve identified a potential issue with select AR-15 Chamber Lock units. On some units, the locking tooth may be partially depressed without entering the correct combination, which could compromise the security of the lock.
How to Test Your Lock
- Press down the thumb button without entering the combination.
- While holding the button, press down on the locking tooth.
If the tooth presses at least one-third of the way down, your unit may be affected.
Root Cause
This issue resulted from a change in CNC fixturing that impacted a precision milling operation. Due to tight tolerances, this defect was not initially apparent.
- The issue has been corrected in our CNC machining process.
- Custom gauges have been implemented to measure the affected feature.
- Post-CNC quality checks now include this inspection step.
- Final product testing now includes verification of locking tooth resistance.
Which Products Are Affected?
Units shipped between June 2 and July 15, 2025 may be affected. If your product was shipped during this period, we encourage you to perform the test above and request a replacement if needed.
Replacement Program
We are offering the following at no cost:
- Free replacement of affected products
- Free return shipping for recalled units
Even if your Chamber Lock is not defective, any customer who purchased a Chamber Lock that was shipped during the applicable time period is eligible for a free replacement Chamber Lock.
Request a Replacement
Please complete the form below to begin the replacement process. Your submission will help us verify eligibility and coordinate return shipping.
Thank You
We appreciate your patience and understanding as we work to resolve this issue quickly and professionally. Your safety and trust are our top priorities. If you have any questions, please reach out to our team at support@stopboxusa.com.