Featured on Evike.com's "The Gun Corner" is the SRU GBB SCAR Bullpup Conversion Kit. There are two versions of this kit, one made for the SCAR-L GBB and the other for the SCAR-H GBB. For this feature, it is the SCAR-H Bullpup Conversion Kit which is what airsoft players are after rather than the SCAR-L version.