SRU posts a video of their Glock SMG Kit X for the Gas Blowback Pistols. Now on pre-order this kit allows a G17, G18, G34, and G35 GBB Pistols to be turned into SMGs. There is a version for the Tokyo Marui and CYMA Glock 18C AEP pistols too. Release is expected this week with the first and second batches already ordered. April is when the third batch is released.