Inquiry (采购产品): Barrel Rifling I would like to know if you company is capable of drilling and rifling a 40mm 4 ft. barrel built to model the M203 grenade launcher w/ 6 lands of twist. We are attempting to conduct projectile tests with a pneumatic air cannon and would like a barrel that replicates the M203 grenade launchers parameters. Here are the specs.: SPECIFICATIONS: Caliber: 40 millimeter grenade Length of Launcher: 15.3 inches Barrel Length: 12 inches Rifling Twist: 6 Lands Weight - Unloaded: 3 Lbs. Weight - Loaded: 3.5 Lbs. Weight of M16 and M203: approx. 11 Lbs. Operation: Pump Action, Breech Loading Single Shot Trigger Pull: 5 lbs. Muzzle Velocity: 71 Meters/Sec. Maximum Effective Range (area targets): 1,148 ft Maximum Effective Range (point targets): 492 ft. Classification: UNCLASSIFIED Caveats: NONE Propulsion and Structures Directorate **** Hidden Message ***** David Mayo Redstone Arsenal Propulsion and Structures Directorate Redstone Arsenal, AL 35898 USA Company: U.S. Army Phone: 265-842-9958 E-mail: david.b.mayo@us.army.mil **** Hidden Message ***** david.b.mayo@us.army.mil
