The CQB version of the GBLS DAS GDR15 has landed in the UK according to GBLS UK. A very realistic M4 AEG to operate, rivaling the M4 GBB-R, with blowback and recoil effect. You can check with the authorised dealers if you want one and if you want to try one before buying, you can join a GBLS DAS CQB Training Event at the Longmoor Urban Training Centre this weekend with Legion Airsoft events.