Competition Upgrade Kit for KJ Works / ASG CZ Shadow Series (Magic Recoil Spring & Hand-Polished Mag Lip) Pistol-Inner Barrel giving the operator the choice

giving the operator the choice of their preferred mounting hardware (QD swivels

This variety guarantees compatibility across a wide range of handguard and forend thicknesses

the sear tooth meets the slide notch at a perfect perpendicular angle

flashlights

The EP dot pattern texture on the front side provides better traction or "bite" if used as a barricade stop

Competition Upgrade Kit for KJ Works / ASG CZ Shadow Series (Magic Recoil Spring & Hand-Polished Mag Lip) Pistol-Inner Barrel giving the operator the choiceFriction Reductions: Re Engineering the CZ Shadow Cycling Efficiency Through Geometric Profiling and Tension Alignment Within high cadence dynamic shooting courses, mechanical lag is the primary bottleneck to tight split times. Standard gas blowback platforms frequently introduce sub optimal cycling dynamics. Native factory recoil springs often lack the progressive rate needed to balance heavy gas impulses, causing sluggish return to battery or