The Catch22 V2 slides over a standard .223 bolt catch for easy installation. Use this for non-dedicated .22lr builds where you'll be frequently swapping calibers and still need a functional bolt catch.
Currently out of stock here, but Brownells still has some available https://www.brownells.com/rifle-parts/bolt-parts/bolt-catch-parts/bolt-catches/ar-15-22lr-v2-catch22-bolt-catch-prod143642.aspx The Catch22 V2 (aka the Catch23) is a bolt catch for .22lr converted AR-15s. The Catch22 V2 slides over a stock AR-15 bolt catch to work with the .22lr bolt. This allows you to easily swap between calibers without the need for any tools. When the upper receiver is raised from swapping over to your .22lr bolt, just slide the Catch22 over the stock bolt catch and you're ready to go. For international orders, please visit our partner's page at https://riflemags.co.uk/
AR-15 rifles that have been converted to shoot .22lr are a great and inexpensive way to shoot. Unfortunately, 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 comes in. The Catch22 is a direct replacement for your standard bolt catch and will work with most common .22lr conversions. The bolt catch is compatible with Spike's Tactical, CMMG, and Tactical Solutions dedicated upper receivers and conversion bolts, as well as similar Ceiner kit conversion bolts. For international orders, please visit our partner's page at https://riflemags.co.uk/
The AR Catch22 clip-on magazine shim can clip right onto your lower for a quick and easy way to shim the magazine and take up the slack in the mag well. The clip is easy to install and remove and it allows you to use your standard 15-22 magazines in your AR without any modification. With the 15-22 magazine adapters, the S&W 15-22 magazine will work great with the Catch22 to provide true last-round-hold-open functionality. If you are using a Kriss Defiance DMK22 which already comes with a bolt catch, you can use these adapters to use the 15-22 magazines instead of the Kriss magazines. This can be helpful as the 15-22 magazines are more consistent for bolt-hold-open and they come in higher capacity than the Kriss magazines. One adapter is needed per lower. For international orders, please visit our partner's page at https://riflemags.co.uk/
AR Catch22 magazine adapters can stick right onto your 15-22 magazines for a quick and easy way to shim the magazine and take up the slack in the mag well. With these adapters, the S&W 15-22 magazine will work great with the Catch22 to provide true last-round-hold-open functionality. If you are using a Kriss Defiance DMK22 which already comes with a bolt catch, you can use these adapters to use the 15-22 magazines instead of the Kriss magazines. This can be helpful as the 15-22 magazines are more consistent for bolt-hold-open and they come in higher capacity than the Kriss magazines. One adapter is needed per magazine. For international orders, please visit our partner's page at https://riflemags.co.uk/
Magazines like the S&W 15-22 have a strong enough spring to solidly engage the bolt catch after the last round is fired. Some magazines like the KRISS Defiance DMK22 need a bit of help to consistently engage the bolt catch. This spring is a direct replacement for the stock bolt catch spring and will allow you to use the DMK22 magazines with the Catch22. There aren't any adverse effects from switching to the lighter spring. For international orders, please visit our partner's page at https://riflemags.co.uk/
The V1 bolt catch works best for dedicated .22lr ARs as it's a direct replacement for a stock bolt catch.
The V2 bolt catch can slip-on over a .223 bolt catch which is a faster installation and better for ARs that frequently change calibers.
Why would I need an adapter/shim to use S&W 15-22 magazines?
S&W 15-22 magazines are skinnier than a standard AR magazine. Without something to take up the slack in the magwell, the magazine will have too much slop and not work consistently.
What is the advantage of the clip-on vs the stick-on S&W 15-22 magazine adapters?
With the clip-on adapters, you only need one clip regardless of how many magazines you have. The downside can be if you have non 15-22 magazines then you'll need to remove the clip before using them. If you have a number of different types of magazines, then the stick-ons are the better way to go. The shim will be adhered to the magazine so you don't need to change anything when swapping between types of magazines.
How does the catch work differently than the CMMG/BlackDog style magazines for last-round-hold-open?
Magazines that use the follower to hold the bolt open will let the bolt drop when the magazine is removed. The Catch22 uses the bolt catch to hold the bolt open which functions like a .223 bolt catch.
What do I need to have the same last-round-hold-open function as a standard .223 AR?
- Catch22 (V1 or V2)
- S&W 15-22 magazines
- A clip-on or stick-on magazine adapter
What happens if I just use a Catch22 (V1 or 2) with CMMG magazines?
With this combination, the bolt will be held open after the last round by the magazine follower. To keep the bolt open after the magazine is removed, you'll have to manually engage the bolt catch.
This magazine fits in a standard AR mag well without any shim. The spring tension is a bit weak though and so you will need a lightened bolt catch spring for consistent last-round engagement.
The Gen 1 magazine is a classic BDM design and will run great in your AR. For functionality with the Catch22, because there is no extended follower, you don't get any last round hold open with this magazine. You can...
Because the back of the follower can't reach the bolt catch, the bolt catch won't be engaged automatically. The extended part of the follower will hold the bolt open when the last round is fired but the bolt will drop...
The Catch22 was designed around Ceiner style bolts. Because of this, .22Ir bolts that aren't based on that design
might not work. Here is an overview of the most common bolts / uppers.
If you have a question about something not listed here, please contact us below.
•CMMG dedicated upper receivers and conversion bolts
•Palmetto Sate Armory (PSA) and Spike's Tactical dedicated upper receivers and conversion bolts
•Ceiner kit conversion bolts
•Chiappa / ATI dedicated upper receivers
•Taccom 22RF bolts
•CORE15 dedicated upper receivers
•Bushmaster C22 upper/rifle
•Nordic Components V3 upper receivers (rounded bolt)
•2A Armament conversion bolts (does not work with S&W 15-22 magazines)
•Right To Bear (RTB) Bolts
•Tactical Solutions upper receivers (catch might need to be filed down a bit depending on the upper version)
•Bear Creek Arsenal Side Charging .22lr Uppers (the back bottom of the bolt might need to be filed a bit to provide clearance for the catch)
•Colt conversion bolts
•M261 conversion bolts
•CZ V22 uppers
•Nordic Components V1 upper receivers (square bolt)
•JP Enterprises upper receivers or bolts
•CMMG auto sear trip kit