Modify-Tech is a valued company with over 40 years specializing in the production of the highest quality parts, tools and accessories. They successfully operate on the airsoft market, offering internal parts, tuning kits, as well as the replicas themselves. They are an ideal choice for power and endurance tunings of all types of replicas.

The hop-up rubber is made of silicone, thanks to which it retains its properties also at low temperatures, because it does not harden, as is the case with ordinary rubber. It performs perfectly both in typical conditions and in subzero temperatures - it retains its properties even at temperatures reaching 40 degrees below zero.

A soft-type rubber, recommended for use with 0.20g & 0.25g bbs