Specna Arms - SA-B12 M4 8" KeyMod AEG m45a1 SHS 16:1 gears

SHS 16:1 gears

and at a price most airsoft players can afford

The efficiency is excellent with well over 600 shots per tank fill

Threads: 11mm CW

barrel & lower frame

Specna Arms - SA-B12 M4 8" KeyMod AEG m45a1 SHS 16:1 gearsNew in from Specna Arms is this SA B12 8" KeyMod Rail M4. This model features a 8 modular, KeyMod handguard. The KeyMod module can be expanded upon with dedicated segments, for instance, RIS rails (KeyMod nuts) in any position or configuration due to holes around the handguard (KeyMod slots) its also fitted with a Crane Style Stock and a Marine traded marked metal body. The gearbox is rewired and is the new SAEC system which means the main Spring can