Grey Birch Solutions questioned whether people would need or want The Parka blaster deflector since it is solely to be used with .22LR, and the .22LR isn't exactly known for a power muzzle blast, but decided what the heck, it looks cool, and people might like it. So here it is, The Parka .22LR blast deflector. Made from carbon fiber and 6061 aluminum, The Parka is 2.75" long and weighs 32 grams, and is threaded A 1/2-28. Mfg: Grey Birch Solutions