Jan 14, 2005 · (6) Releasing delta ring after installation of upper & lower RIS (or RAS) should allow the delta ring to spring forward and "cam" rails snugly around the barrrel nut. If you have our (KAC) SAS Lower Rail, it has a hex screw at the rear the must be removed before installation.

Requires the real steel style delta ring for proper fit. The pieces are definitely rigid and the finish is pretty nice. It is not terribly wobbly when assembled, but I did add some duct tape in the groove where the delta ring teeth go and now it is rock solid.

Matrix Delta Ring Set for M4 / M16 Series Airsoft AEG (Daerk Earth) Fits all Marui Compatible RIS / Hand Guard / Metal Bodies. (Excluding free float kits, which should include the free float delta ring with kit)

Mar 25, 2025 · That means for perfect fitment; your rifle needs to have a carbine length gas system plus a delta ring assembly, fixed front sight/gas block, and a round handguard end cap. It should be noted that this RAS works best with lighter …

Apr 25, 2022 · If you don’t know your barrel nut from your handguard retainer cap or what a delta ring is then this may be of assistance. Arguably the largest and most important element of the iconic aesthetic of the KAC RAS is not the handguard itself, but the rail covers that shipped with it.

The rifle must have a carbine length gas system, delta ring assembly, fixed front sight/gas block, and round handguard end cap. Lighter barrel profiles work best (M4 or Government contours). Heavier barrel contours may require modification to the inside of the rail.

Shop For all Tokyo Marui, SRC, Dboy, Classic Army, Echo1, JG and compatible AEG RIS and metal bodies. Manufacture: OEM of your favorite AEG brands. Matrix / Dboy / APS / CYMA *If your RIS is a free-float type, you do not need a delta ring.

Delta Ring for M4/M16 Replicas. Delta ring that enables connecting a RIS rail or handguard panels with the receiver and the barrel in M4 / M16 replicas.