LMT 16″ Piston Upper

Description

LMT Defense 16-Inch Piston Upper Receiver – Built for Rugged Reliability

Upgrade your AR platform with the LMT Defense 16-Inch Piston Upper, engineered for unmatched durability, performance, and modularity. Trusted by military and law enforcement professionals around the world, this piston-driven upper offers cleaner operation, less heat transfer, and superior reliability in adverse conditions.

Key Features:

• Caliber: 5.56 NATO / .223 Remington

• Barrel Length: 16 inches, chrome-lined, lightweight profile

• Operating System: Monolithic Rail Platform (MRP) with a piston-driven gas system for enhanced reliability

• Barrel Material: Cold Hammer Forged, Mil-Spec steel

• Handguard: Free-floating monolithic upper with full-length Picatinny top rail

• Compatibility: Designed to pair with any Mil-Spec lower receiver

Whether you’re building a duty rifle, a precision patrol carbine, or an all-purpose AR, the LMT 16” Piston Upper delivers the performance you demand with the rugged construction you expect from Lewis Machine & Tool.

Why Choose Piston?
Compared to direct impingement systems, LMT’s piston design reduces fouling in the receiver and runs cooler—ideal for high-round count sessions or suppressed setups.