SIG built the M400-FORGE to arrive with the upgrades most AR owners add later. It has a cold hammer-forged barrel, a TriggerTech duty trigger, a full-length free-float M-LOK handguard, an ambidextrous charging handle and a Magpul SL-K stock. It is optics ready, so you can mount your choice of red dot or LPVO.
Key features
- 5.56 NATO, 30+1; one 30-round polymer magazine
- 16″ cold hammer-forged steel barrel, mid-length gas, direct impingement
- 1/2×28 threads, 90-degree shoulder, A2 birdcage flash hider
- TriggerTech 3.5 lb two-stage flat-blade trigger
- Full-length free-floating M-LOK handguard and Picatinny top rail
- Ambidextrous charging handle; 6-position Magpul SL-K stock
- 35.5″ long (32.25″ collapsed); 6.8 lb (SIG spec)
Buying from PM Customs in Yukon
PM Customs is a licensed FFL in Yukon, OK, serving the Oklahoma City metro. Choose local pickup by appointment (generally Mon–Sat, 8 AM–4 PM), or have your M400-FORGE shipped to your local FFL. You pick at checkout. Questions? Call 405-265-8955.
