Huma Air Regulator for Air Arms S400/S510 (#1284/1110/HP) 0.25" (6.35mm) Stainless Steel Precision lead screw

Stainless Steel  Precision lead screw allowing for smooth micro adjustments

making way for the hollow point to do the rest of the work

Two-stage adjustment

Barrel length (twist): 400 mm (1/17

This mount is ideal to bring the eye closer or further away from your scope should your scopes eye relief be too long or too short

Huma Air Regulator for Air Arms S400/S510 (#1284/1110/HP) 0.25" (6.35mm) Stainless Steel Precision lead screwFits S400, 410, S500, HFT and S510 Designed for placing inside the pressure tube. There are two o rings on the regulator body who seals inside the tube wall. The regulator is vented to the atmosphere for excellent regulating behavior and no creeping up in power on the long term. The regulator has a seperate volume bus (plenum) matching the caliber and chosen pressure range. The regbody is only 16 mm long with a very small neck. This ultra compact