When a standard AR-15 is converted to .22lr through a conversion bolt or replacement upper, the bolt catch stops working. Magazines that hold the bolt open after the last round are a good stopgap but it doesn't offer the same functionality as a standard AR and most ranges won't let you leave an empty magazine in your rifle in order to keep the bolt open and show that it's clear. This is where the Catch22 V1 comes in. The Catch22 V1 is a direct replacement for your standard bolt catch and will work with most common .22lr conversions. To install, just punch out the bolt catch roll pin and replace the stock .223 catch with the Catch22. PLEASE NOTE: The Catch22 is Mfg: Ar Catch22
