KWA Drop-In Rail System (KM4, RM4, VM4)
Now you can install the KWA RIS rail system on any KWA rifle that accepts standard carbine-length drop-in rails
Atlas Customs SOCOM 556 Mini QD Supressor
UNIQUELY DESIGNED FULL METAL MOCK SUPPRESSOR BARREL EXTENSION
Echo 1 MK1 SR556 7.5" QD Suppressor w/ Flash Hider
The MK1 is a unique barrel extension because of its quick detach feature.