SIG Sauer MCX Patrol 5.56 NATO, Legacy First-Generation, 16 in CH-F Barrel, Folding/Telescoping Stock, Ambi Controls
This legacy first-generation SIG Sauer MCX Patrol stands out with its bufferless, dual-spring recoil system that enables a true side-folding stock. It features a 16-inch cold hammer-forged steel barrel chambered in 5.56 NATO, a full-length 1913 Picatinny top rail, and ambidextrous controls. Quick-change barrel architecture and a "MULTI-CALIBER" magwell marking highlight the platform’s modular design.
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: There are mild scuffs and scratches throughout.
What's Included
- 1x 32-round polymer AR-15 pattern magazine (brand/model not confirmed)
- Flip-up front and rear iron sights (installed)
- Angled hand stop/foregrip (installed)
The MCX Patrol’s short-stroke gas piston system and internal dual-spring recoil assembly eliminate the need for a buffer tube. This architecture allows a true side-folding, telescoping, minimalist stock and keeps the rifle compact without compromising function. Length of pull is 12.75 inches.
The 16-inch steel barrel is cold hammer-forged and factory-marked "5.56 NATO." It is threaded and fitted with a three-prong flash hider. An aluminum free-float handguard and a full-length 1913 Picatinny top rail bridge the receiver and handguard for uninterrupted mounting space.
Ambidextrous controls include the manual safety and magazine release, complemented by a left-side bolt catch. The rifle also incorporates an ejection-port dust cover and a case deflector. The lower is marked "SIG SAUER, INC. EXETER-NH-USA," and the magwell bears the "MULTI-CALIBER" marking.
This first-generation configuration highlights the MCX platform’s quick-change barrel architecture and bufferless operation. It comes finished in matte black over an aluminum-alloy receiver, with a SIG-pattern polymer pistol grip and installed flip-up iron sights.