the outer barrel is 10

The integrated Quick Spring Change System gives you the option to easily adjust the rifle velocity by adding different springs

Highly detailed CNC machined aluminum slide w/ officially licensed STI rollmarks and TTI laser engraved markings

the M11A1 provides users with a nimble light weapon with an extremely high rate of fire

MUZZLE VELOCITY: 395-410 FPS (W/ 0

WellFire Bolt Action Sniper w/ Scope & Bipod (OD GREEN) gas blowback the outer barrel is 10Specifications Brand: WellFire Operation: Bolt Action Material: Metal Outer Barrel, Receiver Polymer Body, Stock Firing Modes: Bolt Action Single Shot Muzzle Velocity: 370 380 FPS (w 0. 20g BBs) Magazine Capacity: 30 Rounds Hop Up: Yes, Adjustable Outer Barrel Length: 28" Length: 47. 25" 49. 5" Weight: 7. 2 lbs Color: OD Green Package Includes: 1X Sniper Receiver Barrel Assembly, 1X Tri Rail, 1X Sniper Body, 1X Magazine, 1x Scope, 1x Bipod, 1X