
300blk builder kit on an Ambi lower with ARC-Fire
Few Questions:
- Any issues with an ambi lower on the FM-15 upper?
- Any issues with the AS Design Arc-Fire FRTs on the FM-15 upper?
- Planning to build it as a suppressed 300blk, anyone had success with a cheap gas block or should I just get an AGB?
- Anyone know the interior dimension of the handguard? Wondering how short I can run the barrel with a Nomad-L tucked. I can also put a smaller 30 can on it.
Planned build list ($875 for the base parts, ~$1450 for the ergos/optics):
- FM-15 Upper Build Kit - $360
- Faxon 7.5" Gunner 300 BLK - $125
- SilencerCo SCO-15 Ambi Lower - $220
- AS Designs ARC-Fire FRT Trigger Kit - $130
- Pistol Length Gas+Block, and Lower Pins & Springs - $40
- Plan B A2 mount and Nomad-L or a new dedicated can - $1000
Ergonomics and Optics
- Driven Arms Co Ultralight Compact Grip (ULCG) - $32
- Emissary Handbrake - $35
- A3 Modular Folding Brace 6.25In straight arm - $190
- Vector Frenzy FA Red Dot on Vector Acro low riser - $200
- Midwest Industries backup irons - $170
- SMS Trinity, SF 300 with switch cap, and Unity Axon Sync - $800
I want it to fit in my 20" long "Nike Elite EasyOn" Team USA backpack (gRaY mAn)