Glock Model 21 Magazine Catch — OEM Replacement, .45 ACP (Part 1035)

Restore factory-correct retention and reliable drop-free reloads on your Glock® 21 with the Glock Model 21 Magazine Catch (1035). This genuine OEM component returns worn or damaged mag catches to Glock standards, ensuring your magazines seat positively and release cleanly—key for duty guns, defensive carry, and high-round-count training pistols.

Why Choose an OEM Glock Magazine Catch

• Factory geometry = factory reliability: Glock’s original dimensions help maintain correct stack angle and magazine latch engagement, reducing failures to seat or accidental releases.

• Durable polymer construction: Engineered for long service life and smooth wear-in against steel magazine bodies.

• Drop-in service part: Straightforward replacement for most Glock 21 frames—perfect for preventative maintenance or refurbishing a trusted .45 ACP workhorse.

• Consistent feel: Restores the crisp, predictable press-to-release you expect across range and carry magazines.

• Budget-smart upgrade: A small, inexpensive part that solves big problems like intermittent mag drops or gritty engagement.

Key Details

• Model: Glock Model 21 Magazine Catch

• Caliber Platform: .45 ACP (G21 family)

• Part/Model Number: 1035

• Material: Factory-spec polymer

• Finish/Color: Black

Compatibility Note: Magazine catches are generation-specific and can vary between G21, G21SF, and Gen4/Gen5 frames (Gen4/Gen5 models use a reversible design and different part numbers). The 1035 catch is intended for select Glock 21 configurations. Before ordering, compare your current part number, frame generation, and grip style (standard vs. SF). When in doubt, consult a Glock armorer or your manual to confirm fit.

Symptoms This Part Fixes

• Magazine doesn’t lock in without excessive force

• Unintended mag drops during recoil or movement

• Rough, gritty release or inconsistent engagement

• Visible rounding or chipping on the catch face

Installation Snapshot (Overview)

1. Unload & clear the pistol; remove the slide and recoil assembly.

2. Disassemble frame per your Glock manual.

3. Relieve spring tension on the mag catch spring and slide out the old catch.

4. Install the new 1035 catch, ensuring the spring seats in the molded groove.

5. Function check with empty magazines: verify positive lock, clean release, and drop-free behavior.

Tool tip: A Glock armorer’s tool or small punch makes spring manipulation easier. If you’re not comfortable performing the work, a qualified gunsmith can install and verify function quickly.

Best Practices

• Inspect springs & mags: A new catch won’t fix worn mag springs or cracked feed lips—refresh those as needed.

• Number your magazines: Mark baseplates (1,2,3…) to track any issues to a specific mag.

• Test with carry ammo: Validate reliable lock-in and drop-free release using your chosen defensive load before carry.

• Recheck after holster changes: New holsters or tighter retention can alter the feel; verify the button isn’t inadvertently pressed.

Use Cases

• Duty/defense maintenance: Keep your .45 running at factory spec.

• Training/range pistols: Replace worn catches on high-mileage G21s.

• Refurb projects: Return older G21 frames to dependable service.

SEO Highlights (For Shoppers & Merchandisers)

• Primary Keywords: Glock Model 21 magazine catch, 1035 OEM mag release, Glock 21 .45 ACP mag catch replacement.

• Related Keywords: Glock 21SF mag catch*, Glock 21 magazine release, Glock .45 mag catch OEM, Glock magazine latch 1035.

• Value Props: Factory geometry, reliable engagement, drop-in install, affordable preventative maintenance.

*Confirm exact generation/variant (standard vs. SF; Gen3 vs. Gen4/Gen5) before purchase.

What’s in the Package

• (1) Glock® Model 21 Magazine Catch — Part 1035

• OEM packaging (springs, button, and additional parts not included unless specified by your distributor)

A small part that protects a big investment—replace your worn latch with the Glock 21 Magazine Catch (1035) and bring your .45 ACP back to Glock-reliable lock-in and release.

"The End"