SRC - Helios 5.1 Mk1 Hi-Capa GBB (Co2) Pistol - Black 45acp an enhanced tappet plate and

an enhanced tappet plate and a quick change spring gearbox

There is enough space on the body of the mug that it could be engraved to give it that even more personal touch

Do not mistake this for a standard Umarex HK417 because they are entirely different beasts

Umarex / VFC HK416 GBB

SRC - Helios 5.1 Mk1 Hi-Capa GBB (Co2) Pistol - Black 45acp an enhanced tappet plate andSRC Helios 5. 1 Mk1 Hi Capa GBB (Co2) Pistol Black This is one of the brand new outstanding Airsoft pistols from SRC. This Helios MKII is a full metal pistol with polymer custom skeleton grip unseen before on any previous pistol. The quality is outstanding; SRC pistols really do get better with every new model! It has the SRC Hi Capa 28 round magazine, and it is compatible with both GAS and Co2 mags, making it very versatile for all weather