SRU apply 3D-weaving technology on manufacturing. This way leads concepts boom out with no limitation, also makes it much more faster to push theses amazing ideas from SRU design house into the market.

SRU SCAR Bullup Gun Rail (Scope Mount, Black)
3D Printing Technology Gun Rail
Install any red dot or scope onto this 20mm scope mount
Suitable For SRU Prototype SCAR-L Bullpup GBB Rifle Kit (SR-P1-L-BK)

Length: 184mm