APFG XM7 Steel Outer Barrel Set Maximise your VFC M249 GBBs

Maximise your VFC M249 GBBs Accuracy with the BBA Hop Arm

Do NOT use on the Alloy hop units

32s for testing

for amazing results

the concave design of our hop arm is designed to squeeze the absolute most of the VFC M249 platform by tightening the groupings at longer ranges

APFG XM7 Steel Outer Barrel Set Maximise your VFC M249 GBBsProduction run 2 22 06 26 A drop in steel replacement which greatly increases strength of the outer barrel. A relatively common issue on the APFG XM7 is snapping the outer barrel threads which is due to the poor quality zinc outer barrel and gas block piece. Gas block parts will need to be transferred over from the original APFG unit. Includes: Steel outer barrel and gas block M3*8mm Torx screw for the underside of the gas block (APFG screw often