VLTOR Clubfoot A2 Full Length Rifle Stock ARM-2C AR15 Modstock

The Rifle Length Modstock is a dual-purpose stock system which mounts to either a Carbine Collapsible Receiver Extension (MilSpec only) or the Rifle Length Receiver Extension. The stocks are offered in two sizes: older M16A1 length and the current 5/8-inch longer M16A2 length stock system.

Each kit contains two Rifle length Accessory Compartments and Cheek Weld Adapters. Also includes a QD Sling Swivel and the needed hardware to mount to either the Rifle or Carbine/collapsible Receiver Extension.

When mounted to the Rifle Length receiver extension the stock will be the fixed at A2 length. When mounted to the Carbine Receiver extension the Rifle Modstock can be adjusted for length by using the Carbine Receiver extension’s locking positions and the provided locking pin.

The Rifle Modstock is available in either the A1 length or the longer A2 version. All rifles use the same receiver extension tube; there are no MilSpec or “Commercial” diameters, the only difference is that the A2 rifle uses a 5/8” spacer and longer screw.  This is the more recent version and far more common. For sale here is the A2 length Rifle Modstock kit. It does not come with the longer screw or A2 spacer (use your existing parts).

Note: When mounted to an adjustable receiver extension tube (NOT APPLICABLE TO FIXED TUBES) the Rifle Modstock is legally considered an adjustable stock!  Keep this in mind in regards to any local/state laws on "Assault Weapon" features.