Crimson GBB Hop-Up Bucking - 65 Degree - Finned ARES A drop-in replacement for the

A drop-in replacement for the standard arm + nub which gives consistent pressure vertically down onto the hop bucking

simply remove your bolt from your GBBR

Compatible with VFC FAL/OSW

using reinforcing on wear points and a generally oversized fit

- Aimpoint ACRO (and Vector Optics clones using a picatinny mount)

Crimson GBB Hop-Up Bucking - 65 Degree - Finned ARES A drop-in replacement for theNew from Bristol Based Airsoft & Waldo Dynamics: A New Standout on the Hop Up Scene: Key features: GBB VSR spec bucking 65 degree hardness NBR rubber Over Chambering prevention design Pronounced two point of contact pressure patch Alignment fin From CRIMSON: In collaboration with Waldo Dynamics and Cheffington (Ian from Firesupport UK), we spent over a year trying countless bucking prototypes, materials, and contact patch shapes to bring you the best