Precision-machined from 6000-series billet aluminum, this drop-in mag block offers lightweight strength and long-term durability. It is engineered with a hardened steel insert for the feed ramp to ensure continuous, smooth cartridge feeding and reliable cycling under heavy use.

Convert your standard AR-15 lower receiver to fire pistol-caliber rounds with the 9mm Adapter Drop In Mag Block. Designed for easy installation without permanent modifications to your lower receiver, this conversion block allows your rifle to accept affordable, lower-penetrating 9mm rounds using standard Colt-style magazines.

NOTE: Recommended for use with 124 Grain Ammunition for optimal function and feeding performance.

• Simple Conversion: Drop-in design converts standard AR-15 lowers to 9mm without permanent modification.
• Colt-Style Compatibility: Designed specifically for use with standard Colt-style 9mm magazines.
• Billet Aluminum Body: Machined from high-strength 6000-series billet aluminum for lightweight durability.
• Steel Feed Ramp: Features a durable steel insert feed ramp to maintain consistent, reliable feeding.
• Cost-Effective Shooting: Enables training and target shooting with affordable 9mm pistol ammunition.

NOTE: Use 124 Grain Ammunition