Pwa Ar57 Lem 5.7x28mm Upper Lw/rail

The PWA AR57 LEM 5.7x28mm Upper with Lightweight Rail is a precision upper receiver assembly designed for shooters building AR-platform systems around the 5.7x28mm cartridge. This upper transforms a standard AR lower into a compact, high-velocity platform suitable for tactical training and home defense. It is particularly beneficial for those looking to enhance their shooting experience with reduced recoil and improved controllability.

Chambered in 5.7x28mm, this cartridge delivers significantly reduced recoil and muzzle rise compared to traditional platforms, enabling faster target reacquisition during rapid-fire sequences. Weighing 4.81 lbs, the lightweight construction minimizes fatigue during extended shooting sessions. The LEM designation indicates a lightweight profile upper that maintains structural integrity and rail rigidity, making it a reliable choice for various shooting applications.

This upper assembly is ideal for operators and serious enthusiasts seeking a purpose-built 5.7x28mm rifle platform. Compatibility with standard AR-15 lower receivers means shooters can easily integrate this upper into their existing setups. The integrated rail system allows for rapid accessory mounting for optics, lights, and other tactical hardware without requiring additional rail segments.