ASG Ultimate Cylinder - For Inner Barrel 201-251mm Rails just like the M4A1

just like the M4A1

This helmet comes in Foliage Green

The EPM1-RX internal shell is distinguished by Its grey color and EPM1-RX markings on its surface

You can unbutton the sides to make a very large single waterproof sheet

1mmx185mm in dimension

ASG Ultimate Cylinder - For Inner Barrel 201-251mm Rails just like the M4A1Constructed from solid steel with an attractive ribbed external finish. These high performance cylinders are surface treated to ensure minimal friction between the piston and cylinder wall. Super smooth bore lining. This is a ported cylinder, suitable for 201 251mm barrel lengths. Suitable for nearly all V2, V3, V6, V7 gearboxes. Exceptions can apply to certain brands. View our entire range of ULTIMATE parts here.