APFG XM7 GBBR. First Look, Setup, Rail Mod & Gas vs HPA Test

APFG XM7 GBBR airsoft first look and setup, including attachments, rear stock-rail fitment and chrono checks on green gas and a VFC SCAR-H HPA adapter. A practical look at this replica setup. In this video I walk through the rifle, choose and install my attachments, and build the setup step by step. I then focus on a key design limitation. The rear rail is not a true Picatinny spec, so I show the modification I made to make real stocks fit correctly. Finally, I test the rifle on gas and HPA. Chrono results are shown first on green gas, then using a VFC SCAR-H HPA adapter to see how the system performs and whether compatibility is viable. This is a practical setup and testing video. No hype, just what works, what doesn’t, and what you should know before running one. ⸻ Timecodes 0:00 – Intro 1:12 – Attachments overview 3:42 – Building the rifle 6:40 – Stock installation & rear rail modification 9:51 – Green gas testing & chrono 12:44 – HPA adapter testing (VFC SCAR-H) Instagram. grzlyairsoft Watch next / related videos Watch next — BPW MCX LVAW GBBR Limited Edition | First Look & Unboxing (SIG SAUER Replica)    • BPW MCX LVAW GBBR Limited Edition | First ...   Related — SpecPrecision EXPS3 vs HolyWarrior S1 | Airsoft GBBR Comparison    • SpecPrecision EXPS3 vs HolyWarrior S1 | Ai...   Full playlist:    • SIG GBBR Builds & Reviews