VORTEK D.I.Y. Airgun Tuning Components 
AIR ARMS, BEEMAN, BAM, BSA, GAMO, HW, RWS, XISCO.     
TUNING MADE SIMPLE™

Patented Dual-Guide tuning kit and piston Seal deliver quiet performance!
Smooth, EZ to install tuning parts-precision made providing the least amount of spring noise!

PATENTED PRO-Guide2 TUNING MODULE
Read about it here: http://vortekproducts.com/ourstore/Press-Release