Knight’s Armament Stoner Rifle SR-30 W/ KAC MOD 2 16” 5.56 Upper AR-15
SOLD FOR: $2,865.00
LSB#: WY231005AB019.1
Make: Knight’s Armament
Model: SR-30 Stoner Rifle Lower with a KAC MOD 2 upper.
Serial Number: KM920903
Year of Manufacture: Modern
Caliber: 5.56 / .223
Action Type: Semi Automatic, Direct Impingement, with full Ambi lower, fed by detachable AR pattern magazines. This rifle has a maglock magazine release installed on it. The magazine will still release with the maglock installed without breaking the upper and lower. The left side magazine release functions correctly.
Markings: The left side of the receiver is marked “STONER RIFLE / KM920903” with the Knights Logo, “SAFE FIRE”. The left side of the upper is marked “MOD 2”. The left side of the handguard is marked “KNIGHTARMCO.COM”. The right side of the receiver is marked “FIRE SAFE”, “SR-30 / CAL: 300 BLACKOUT KNIGHT’S MFG CO. / TITUSVILLE, FL / USA”. The left side of the buttstock is marked “ROGERS-SUPER-STOC / www.super-stoc.com”. The right side of the buttstock is marked “COLT DEFENSE / PATENT PENDING”. The right side of the handguard is marked with an M LOK logo and “URX4 P/N-31885-1450”. The left side of the safety selector is marked “KAC”. The trigger is marked “KAC”. The rear sight is marked “KAC”. The barrel is marked “5.56 1:7 CHF B CH 32016”. The buffer is marked “WWW.KNIGHTSARMCO.COM”.
Barrel Length: 16”. 18” with QDC three prong flash eliminator suppressor host muzzle device.
Sights / Optics: The top of the rifle has a 20” uninterrupted picatinny rail for sight and optic options. The rail is mounted with an adjustable KAC folding micro rear sight for 200-600 meters.
Stock Configuration & Condition: The furniture set includes a KAC 14.5” M-LOK forend with two attached picatinny rail adapters, and QD cups built into each side. The pistol grip is a standard A2 style pistol grip. The stock is a Colt Defense marked Roger’s super stock with ambi qd cups, sling slot, rubber checkered buttpad and a length of pull at full extension of 14”. The handguard shows minor marks and nicks scattered throughout. The pistol grip and buttstock show only minor handling wear. Overall the furniture set is in Very Good + to Excellent condition.
Magazine Quantity & Condition: One Windham Weaponry 30rd 5.56 magazine in Very Good condition.
Type of Finish: Black Anodized
Finish Originality: Original
Bore Condition: The bore is bright and the rifling is sharp. There is no erosion in the bore. The feed ramps show minor copper fouling. The muzzle device shows minor carbon and verdigris. In this writer’s opinion the bore rates 9/10.
Overall Condition: This rifle retains about 99% of its metal finish. There is operation wear on the case deflector. There are some surface level scratches on the upper and handguard along with a few light drag lines. The screw heads are sharp and pins are unmarred. The spacers behind the muzzle device on the right side have been partially crushed with what appears to be a wrench slip. The markings are clear. Overall, this rifle rates in about Very Good+ condition.
Mechanics: The action functions correctly. This rifle has a maglock magazine release installed on it. The magazine will still release with the maglock installed without breaking the upper and lower. The left side magazine release functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.
Box, Paperwork & Accessories: This rifle comes with a total of one magazine.
Our Assessment: This Knight’s Armament Stoner Rifle (SR) build is a premium-tier AR-pattern rifle, combining the SR-30 lower receiver with a KAC MOD 2 16-inch upper in 5.56 NATO. While the SR-30 lower is originally designed for .300 Blackout, it is fully compatible with 5.56 uppers, and in this configuration, it retains the legendary Knight’s Armament quality, fit, and finish. KAC rifles are known for their battle-proven durability, meticulous engineering, and military and law enforcement pedigree, as they have been widely used by elite units, including U.S. SOCOM.
The inclusion of a KAC QDC 3-Prong muzzle device makes this rifle suppressor-ready for Knight’s QDSS (Quick Disconnect Sound Suppressor) series, while also functioning as an effective flash hider. Every component except for the Colt Defense Rogers Superstoc buttstock is from KAC, ensuring a fully integrated and highly reliable system. The KAC MOD 2 upper is known for its free-floating M-LOK rail system, enhanced barrel design, and superior gas system tuning, all of which contribute to exceptional accuracy and longevity. While the Rogers Superstoc is a departure from KAC’s factory stock, it remains a lightweight and adjustable option with a solid lockup and good ergonomics. Overall, this build is a top-tier AR platform, offering the legendary performance of Knight’s Armament with a touch of practical customization. Please see our high quality photos via the link and best of luck with your bidding!!!-R.L.
