You can upgrade the externals of your EMG SAI BLU gas blowback pistol with this G&P SAI Steel Slide Kit made for it. It is available now at WGC Shop... "G&P SAI Steel Slide Kit for EMG BLU is fully licensed by EMG / Salient Arms International. It has CNC machined steel construction with 14x1 mm LH threaded barrel with steel thread protector. It has steel front/rear sight set and separate steel dummy extractor part. Recoil spring included and is suitable for EMG SAI BLU GBB pistol."