Stag Arms STAG-10 Classic .308 Win AR-10, 16 inch Nitrided Barrel, FDE, Free-Float M-LOK, SIG SAUER ROMEO-MSR
This Stag Arms STAG-10 Classic, Right-Hand model is a .308 Win AR-10 rifle configured with a 16-inch nitrided 4150 steel barrel, Flat Dark Earth receivers, and a free-float M-LOK handguard. It includes a SIG SAUER ROMEO-MSR red dot (mounted), is built on the SR-25/LR-308 magazine pattern, and is in excellent overall condition.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This rifle shows minimal markings from previous handling and use. The bore is bright and clean.
What’s Included
- SIG SAUER ROMEO-MSR red-dot sight (mounted)
- 1x 20-round Magpul PMAG LR/SR Gen M3 polymer magazine
- 1x 10-round Magpul PMAG LR/SR Gen M3 polymer magazine
No original box or case is included.
The STAG-10 Classic is a right-hand AR-10 pattern rifle chambered in .308 Winchester and built in the USA. It uses the SR-25/LR-308 magazine interface and features right-hand ejection with a case deflector and ejection port cover. An ambidextrous safety is included.
Its 16-inch 4150 steel barrel is nitrided for durability and corrosion resistance, cut with a 1:10 twist, and threaded at the muzzle with an A2-style birdcage flash hider. The direct-impingement action keeps weight and balance in line with traditional AR ergonomics.
The rifle wears a free-float aluminum M-LOK handguard with a full-length 1913 Picatinny top rail, providing ample mounting space. The receivers are finished in Flat Dark Earth, paired with black furniture for a clean two-tone look.
Furniture includes a 6-position telescoping stock and an A2-style pistol grip for a familiar control layout. Rails run the length of the handguard’s top for straightforward accessory placement.
A SIG SAUER ROMEO-MSR red dot is mounted on the top rail. The factory box label reads: "STAG 10 CLASSIC RIFLE 16" .308WIN NITRIDE RH FDE-BLACK."