SIG’s M400 ROSE with ROMEO5 Gen II: 16″ chrome-moly barrel with hybrid compensator/flash hider, free-float M-LOK handguard, ambidextrous controls, Matchlite Duo two-stage trigger, Magpul SL telescoping stock and factory-mounted rose-stylized ROMEO5 Gen II red-dot. About 36.8″ OAL and about 6.4 lb. Ships with two 10-round Magpul magazines and ROSE kit accessories. ROMEO5 Gen II is included. Manufacturer part number: RM400-16B-ROSE-R5X2-10.
Key features
- 5.56 NATO / .223 Rem; 10+1; two 10-rd Magpul mags
- 16″ barrel; ~36.8″ OAL; ~6.4 lb
- Includes ROMEO5 Gen II red-dot optic
- M-LOK free-float handguard; Magpul SL stock
- Matchlite Duo two-stage trigger
- Ambidextrous controls; ROSE kit
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 ROSE shipped to your local FFL. You pick at checkout. Questions? Call 405-265-8955.







