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Sons of Liberty Gun Works built the MK1 platform around the idea that every control on the rifle should be faster and easier to run under stress, and the bolt catch is no exception. This Maritime Bolt Catch is a one-piece steel activation device machined to match the specific geometry of the MK1's control fencing, so it sits flush and flat against the receiver instead of sticking out where it can snag on a sling, kit, or gear during a reload.
SOLGW designed this piece to be noticeably more rigid than a typical mil-spec catch, which cuts down on the flex and play that can eventually lead to separation or premature wear. The enlarged paddle gives your thumb more real estate to work with, which matters more than people expect once you're running gloves, operating in the dark, or just trying to slam a mag change without fumbling for a tiny factory-sized lever.
This is sold as a complete kit rather than just the catch by itself. Along with the billet stainless steel bolt catch, you get the SOLGW XP spring and plunger needed for the install, so you're not stuck ordering separate small parts just to get it running. That's a nice touch since a lot of aftermarket maritime-style catches on the market leave the spring and plunger out entirely.
Because this catch is shaped specifically to match the SOLGW MK1's fencing and receiver contours, it's best suited for MK1-pattern builds rather than a random mil-spec or billet lower from another manufacturer. If you're running an MK1 upper and lower set, this is the exact piece designed to complement that geometry.
Bolt catches take a beating over the life of a rifle, getting worked every single mag change, so having one machined from stainless steel with a low-snag profile is the kind of upgrade that pays off round after round. It's a small part, but it's one of the more frequently used controls on the gun, and SOLGW backs it with the same lifetime warranty philosophy they apply across their parts line.
It's machined specifically around the MK1's control fencing and receiver geometry, so it's built for SOLGW MK1 pattern lowers rather than being a universal drop-in. If you're running a different billet or mil-spec lower, fit and function against the fencing may not line up the same way.
Yes, this kit includes the bolt catch itself along with the XP spring and plunger, so you're not left ordering additional small parts separately. You'll still need a roll pin, punch set, and hammer for the actual install like any other bolt catch swap.
It's a one-piece design machined from billet stainless steel, finished in black. The steel construction is meant to add rigidity and hold up to repeated use without the flex you can get from lighter materials.
The enlarged paddle and low-snag profile make it easier to run mag changes quickly, especially with gloves on or in low light. It's also built to be more rigid than a typical mil-spec catch, which reduces the chance of wear-related separation over time.
| UPC | 657628674412 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SOLGW-MK1-BOLTCATCH-KIT |
| Color | Black |
| Model | |
| Product Type | Bolt Catch |
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