KCI USA 10/13-Round Magazine — .40 S&W, Fits Glock 23, Black Polymer, Blocked to 10 Rounds (CA Compliant)

Model/SKU: KCIMZ048 | UPC: 851586008504

Get reliable .40 S&W performance with capacity that aligns to restricted-state rules. The KCI USA 10/13rd Magazine for Glock® 23 uses a standard 13-round body that’s permanently blocked to 10 rounds for California-compliant capacity, giving you dependable function, training value, and full-size handling—without running afoul of local regulations. Built from tough black polymer with steel-reinforced feed lips, a heat-treated spring, and an anti-tilt follower, this mag is engineered for smooth feeding and consistent lock-back in compact Glock .40 platforms.

Why Choose the KCI USA 10/13rd (Blocked to 10) for Glock 23

• Compliance-ready capacity: 10-round limit in a duty-size body meets many restricted-state laws while preserving Glock 23 ergonomics.

• Proven construction: Impact-resistant polymer shell with steel reinforcement at critical feed points for durability under high round counts.

• Smooth, consistent feeding: Anti-tilt follower and tuned spring tension support reliable cycling across common .40 S&W bullet weights (155–180 gr).

• Easy field service: Removable floorplate enables quick cleaning after dusty bays or long training days.

• Great value: KCI USA offers cost-effective performance so you can stock up for classes and practice without overpaying.

Compatibility: Designed for Glock® 23 (.40 S&W, compact). Also works in Glock 27 (will extend past the grip) and Glock 22 (shorter mag will seat; does not sit flush). Not for Slimline models (G43/43X/48) or 9mm/10mm/.45 ACP pistols. Always verify function in your specific firearm.

Key Specifications

• Brand/Model: KCI USA — 10/13rd Magazine for Glock 23

• Caliber: .40 S&W

• Capacity: 10 rounds (permanently blocked from 13)

• Body/Color: Black polymer

• Feed Lips: Steel-reinforced

• Spring: Heat-treated steel

• Follower: Anti-tilt polymer

• Floorplate: Removable for cleaning

• SKU: KCIMZ048

• UPC: 851586008504

Performance You’ll Notice

• Positive seating & lock-back: Geometry and spring rate promote confident insertion and consistent slide lock on empty.

• Drop-free design: Precise molding helps mags eject cleanly from most Glock frames for faster reloads.

• Year-round durability: Materials resist oils, moisture, and temperature swings for dependable performance in training and defense.

Ideal Use Cases

• Compliance-conscious carry: Maintain compact G23 handling while staying within 10-round limits.

• Range & training: Load out multiple mags for efficient reps, transitions, and reload drills.

• Home defense: Pair proven magazines with vetted defensive ammunition and a routine function check.

Setup & Best Practices

1. Initial inspection: Check body, feed lips, and follower for shipping debris; hand-cycle a few dummy rounds.

2. Function test: Load to 10, confirm seating on a closed slide, lock-back on empty, and drop-free behavior.

3. Ammo vetting: Test your training and carry loads; label reliable mags (paint pen/engraving) for easy rotation.

4. Rotation plan: Number magazines and rotate through training to balance spring wear.

Maintenance & Care

• Clean regularly: Remove the floorplate, spring, and follower; wipe out carbon/grit; reassemble dry or with a light silicone cloth.

• Monitor springs: Replace if you notice sluggish feeding or weak lock-back after heavy use.

• Storage: For long-term stowage, many shooters prefer storing unloaded or partially loaded; modern springs tolerate routine use well.

Legal & Safety Notes

• Know your laws: This magazine is blocked to 10 rounds for compliance; verify it meets your local/state regulations.

• Safe handling: Always ensure the firearm is unloaded before maintenance.

• Live-fire validation: Thoroughly test each magazine before relying on it for defense.

SEO Highlights (For Shoppers & Merchandisers)

• Primary Keywords: KCI USA Glock 23 10-round magazine, .40 S&W compact Glock mag, KCIMZ048, UPC 851586008504, blocked to 10 rounds.

• Related Keywords: state-compliant Glock 23 magazine, .40 S&W 10/13rd mag, black polymer Glock 23 magazine, KCI Glock 23 CA compliant.

• Value Propositions: Compliance-ready 10-round limit, steel-reinforced feed lips, anti-tilt follower, heat-treated spring, budget-friendly reliability.

What’s in the Package

• KCI USA 10/13rd (Blocked to 10) Magazine for Glock 23 — .40 S&W, Black (KCIMZ048)

• Factory packaging with basic care instructions

Get the reliability you need and the capacity your state requires. The KCI USA Glock 23 .40 S&W 10/13rd Magazine (blocked to 10) delivers compliant, dependable performance—perfect for training, defense, and everyday carry.

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