M203 Standard Grenade Launcher with 12" barrel assembly. Manufactured to government specifications, range out to 400 meters. Usable with all 40mm rounds (including but not limited to flare, smoke, training and incendiary rounds). Twist rate of the barrel is 1:48" twist. Federal regulations apply to the purchase of a grenade launcher. call the sales office to order this item 309-732-9527 ATF paperwork required Contact your dealer or LMT directly at 309-732-9527 for estimated delivery time.