Description
The Strike Industries Billet Magazine Catch is one of those small upgrades that punches way above its size. The release button is machined from a solid piece of 6061-T6 aluminum, so it holds up to hard use without wearing down or mushing over like some cheaper aftermarket buttons. Pair that with the steel catch and spring, and you've got a release that feels solid the moment you thumb it.
What Sets the SI Mag Catch Apart
The face of the button is sculpted with deep concentric serrations and a concave profile, which means you get positive, no-look indexing even with gloves on or in low light. That tactile feedback matters when you're running drills and not looking down at the lower. It's textured for a confident feel and manipulation without adding any bulk that gets in the way of your grip.
Fit and Install on the Strike Industries Billet Magazine Catch
This is a drop-in replacement that works with mil-spec AR-15 and DPMS-pattern AR-10 lower receivers. If you've ever swapped a mag catch before, this is the same routine: pop out the old catch, drop in the new one with the included spring, and thread the button to depth. Worth noting that some billet lowers run tighter tolerances than mil-spec, so on rare occasions a build might need a touch of fitment, but on a standard lower it goes right in.
Why Builders Reach for This SI Mag Catch
Billet parts get chosen for a reason. Machined from solid stock, they tend to be more consistent and durable than cast alternatives, and the black anodized finish blends cleanly with just about any AR build. Whether you're finishing a fresh lower or just tired of your bland factory button, this is an easy way to add a bit of personality and a better feel at the same time. Simple, well made, and it gets the job done.
Key Specifications
- Manufacturer: Strike Industries
- Manufacturer Part Number: ARSMCBLK
- UPC: 708747546576
- Model: AR Style Magazine Catch
- Product Type: Magazine Catch/Release
- Button Material: 6061-T6 Billet Aluminum
- Catch Material: Steel
- Color / Finish: Black Anodized
- Compatibility: Mil-Spec AR-15 and DPMS-pattern AR-10 lowers
- Installation: Drop-In
- Button Face: Concave with deep concentric serrations
What’s Included
- 1x Billet Magazine Release Button
- 1x Enhanced Magazine Catch
- 1x Magazine Catch Spring
Frequently Asked Questions
Will the SI Mag Catch fit my AR-10?
Yes. This billet magazine catch is designed for mil-spec AR-15 lowers as well as DPMS-pattern AR-10 receivers. As long as your lower accepts a standard magazine catch, this drops right in.
Is the whole assembly aluminum or just the button?
Just the release button is machined from 6061-T6 billet aluminum. The magazine catch itself and the shaft are steel, which is what you want for the part that actually locks and holds the magazine. That combo gives you a lightweight, good-looking button backed by a durable steel catch.
Is the Strike Industries Billet Magazine Catch hard to install?
Not at all. It's a drop-in job that uses the same process as a factory mag catch: remove the old catch and spring, install the new catch and spring, then thread the button on and press it in to set the depth. Most folks knock it out in a few minutes with basic tools.
Does the button give good grip in gloves or low light?
That's really the point of the design. The concave face has deep concentric serrations that give you positive, no-look purchase, so you can index the button by feel alone even with gloves or in the dark. It's a noticeable step up in tactile feedback over a plain factory button.





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