M4 Parts
Hicapa Upgrade parts
- Barrel Adapters
- Blowbackhousing + Nozzle
- Buffers + Springs
- Cocking Handle
- Frames + Related
- Grip + Related
- Gripsafety's + Thumbsafety's
- Guiderod + Guideplug
- Hammer + Related
- Hopup + Hopup rubber
- Internals
- Magazine catch + Slidestop
- Magwell
- Mounts
- Outerbarrel + Innerbarrel
- Slides
- Slidekits
- Sights
- Trigger
