I have a KWA hk417a2 has blowback rifle. This is the only 417a2 variant on the market. These aren’t available in the US and I’ve never seen another. They’re sold out everywhere overseas and have been for months. It’s oem by Kwa and based off the LM4 system so it takes lm4 hop components and barrels. The rifle works perfectly and hasn’t seen much use at all. Shoots very accurately and has better range than any gbbr I’ve ever owned. It’s a great performer with amazing kick. No trades. Buyer pays fees and shipping