KA Tech MAC Demon Slayer HPA M4

The KA Tech MAC Demon Slayer HPA M4 is not a production rifle. It is a statement. Built from the ground up at KA Tech Airsoft in Orange, CA, the Demon Slayer is engineered to out-perform everything else on the field — and it does.

The Build

• Skeletonized Body: Full skeletonized receiver design eliminates unnecessary weight while maintaining structural rigidity — aggressive, purposeful, and unlike anything else on the market.
• Foldable Stock: Imported from Taiwan, the foldable stock deploys left or right — giving you CQB compactness or extended precision shooting without compromise.
• Javelin M-LOK Handguard: Super-aggressive Javelin M-LOK rail gives you full accessory mounting flexibility across the entire handguard length.
• KA Tech Tuning: Every Demon Slayer is individually tuned by our technicians. Air efficiency, consistency, and velocity are optimized far beyond any stock or competitor build at this price point.

F2 with Custom Hop-Up Assembly (Recommended)

When paired with the PolarStar F2 and Direct Attach Front Cylinder, the Demon Slayer receives KA Tech's special sauce with a custom hopup, bucking and inner barrel assembly, reserved only for our top of the line rifles  

• Our 7in variant shoots .40g 6mm BBs further than 99% of sniper setups on the market.
• Our 12in and 15in variants take that even further.

Engine Options

• F2 w/ Front Cylinder Attachment (Recommended) — Full closed-bolt performance with KA Tech custom hop-up assembly
• Jack w/ Front Cylinder Attachment — High-flow, efficient, reliable
• Kythera — Fully mechanical, no battery required, realistic trigger feel
• Fusion Engine — Standard FE configuration

Built, tuned, and shipped from KA Tech Airsoft, Orange, CA.