Custom MK18 rifle started life as a specna arms but now has an E&C metal receiver with pts pistol grip, CTR stock and a MK18 Rail system
parts wise it’s had over £300 worth of work done in the following,
Perun v2 hybrid mosfet
Quantum bucking and Firm nub
Tight bore barrel
ZCI high speed motor
New aluminium piston head with sorbo pad
all results in a snappy and reliable M4