SIG SAUER CAL-X KIT, SIGMCX, 5.56 NATO, 9IN, LT, W Galvion at a weight of 2

at a weight of 2

Versatile Style: The TDU Green color offers versatility that pairs well with any tactical or casual outfit

touchscreen friendly material allows you to take pictures with front and back cameras

AKA the Picatinny rail

Durable Construction: Crafted to withstand rigorous use

SIG SAUER CAL-X KIT, SIGMCX, 5.56 NATO, 9IN, LT, W Galvion at a weight of 2SIG SAUER offers upper assemblies and caliber exchange kits in various barrel lengths. All NFA rules apply to installation of these upper assemblies to lower receivers and caliber exchange kits to upper receivers. Upper assemblies and caliber exchange kits with barrel lengths less than 16 ? may only be affixed to lower receivers which (1) are not recorded as a rifle lower by the manufacturer and do not have a stock attached to the lower receiver or