Sig Sauer MCX 7.62x39 AR Pistol, 11.5 in Barrel, FDE, Short-Stroke Piston, M-LOK, MI Rear Tube End Cap, 2x 28-Rd Mags
This Sig Sauer MCX AR-pattern pistol is chambered in 7.62x39 and configured with an 11.5 in threaded barrel, a flat dark earth finish, and a short-stroke gas piston system. It features a free-float aluminum M-LOK handguard with a full-length top Picatinny rail, an ambidextrous dual-latch charging handle, and no sights installed. An aftermarket Midwest Industries 1913 rear tube assembly/end cap is installed on the factory hinged adapter. It ships with the original box and label dated November 28, 2023, plus two 28-round magazines including a DURAMAG SS.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present, including minor scratches and small blemishes on exterior surfaces.
What’s Included
- SIG SAUER factory cardboard box with matching label (PMCX-762R-11B-LT)
- SIG SAUER owner's manual and safety instructions
- Two 28-round 7.62x39 AR-pattern magazines: one DURAMAG SS stainless steel and one steel AR-pattern magazine
- Installed Midwest Industries 1913 rear tube assembly/end cap on the hinged adapter
The MCX short-stroke gas piston system keeps fouling out of the receiver and pairs here with the 7.62x39 chambering and an 11.5 in barrel for a compact, capable configuration. The barrel is threaded and fitted with a three-prong flash hider. The flat dark earth finish covers the aluminum receiver set for a uniform, durable look.
The free-float aluminum M-LOK handguard provides modern accessory mounting along the sides and bottom, while a full-length Picatinny rail runs the top. No sights are installed, leaving the rail uninterrupted. Controls include an ambidextrous dual-latch charging handle and a manual safety.
At the rear, this pistol uses a 1913 Picatinny interface with a factory hinged adapter. Installed on that adapter is a Midwest Industries 1913 rear tube assembly/end cap, marked "MI Midwest Industries Inc Made in USA," offering a clean, finished rear profile.
It comes with two 28-round magazines, including a DURAMAG SS AR-15 7.62x39 stainless steel model and a steel AR-pattern magazine. Documentation and packaging include the SIG SAUER factory cardboard box with matching label for model PMCX-762R-11B-LT, label dated November 28, 2023. Receiver markings observed include "SIG MCX MULTI-CALIBER" and "SIG SAUER INC NEWINGTON NH USA." Made in the USA.