The lower frame is railed for attaching aftermarket optics such as a flashlight or laser

Locking mechanism to keep stock at the same spot on the buffer tube

The JG Full Stock for M4 / M16 w/ Built-In Sling Point is a direct drop in replacement for your cracked or broken stock

MOCK IR LASER AND BEACON WITH APERTURE COVER

5 gearbox are now drop-in trigger ready allowing users to employ their favorite MOSFETs or electronic triggers to maximize weapon performance

Lancer Tactical M140 Linear Pitch Airsoft AEG Spring [440-465 FPS] green gas shotgun The lower frame is railedSpecifications Brand: Lancer Tactical Material: Stainless Steel Compatibility: Most Airsoft AEG Gearboxes Package Includes: 1X AEG Spring Features Linear pitch coils make them optimal for high torque motors Durable stainless steel construction Universally compatible with most airsoft AEG gearboxes Estimated muzzle velocity output of 440 465 FPS