Bristol Based Airsoft | APFG XM7 High Pressure Hop Up Nub

The APFG XM7's hop unit is known for its narrow adjustment window. On lower-power setups (1.2 J and below), it often maxes out at around .30 to .32 g BBs, depending on the bucking.

The BBA High Pressure Hop Up Nub from Bristol Based Airsoft shifts that window with a higher rear shelf, so you can hop heavier BBs, around .32 to .40 g depending on your bucking. It is a fine-tuning part for the XM7's restrictive hop unit, not a general performance upgrade. BBA recommends pairing it with the Crimson bucking.

Fits: APFG XM7

In the box: 1× BBA XM7 high pressure hop-up nub