Armalite AR-10T SuperSASS 7.62x51 Semi-Auto Rifle, 20 inch Heavy Barrel, Adjustable Gas Block, Free-Float Quad-Rail, Magpul PRS Stock
The Armalite AR-10T SuperSASS is a purpose-built 7.62x51 semi-automatic rifle configured with a 20 inch heavy barrel, an adjustable SUPP/NORM gas block, and a free-float quad-rail handguard. It features a flat-top upper with a full-length Picatinny rail, a Magpul PRS (Gen 2 style) stock with precise adjustability, and direct-impingement operation. Made in the United States, this example includes distinctive factory rollmarks and a white eagle-in-a-square cartouche on the magwell.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor exterior scratches and blemishes are present. The rifle is supplied without a magazine.
What’s Included
- Armalite AR-10T SuperSASS semi-automatic rifle (7.62x51)
- No magazine is provided
This SuperSASS configuration centers on a 20 inch heavy-profile, threaded barrel capped with a birdcage flash suppressor. The barrel is free-floated by a quad-rail handguard with circular vent holes, supporting stable performance with accessory mounting options on all sides.
The adjustable gas block offers SUPP/NORM settings to tune the rifle for suppressed or unsuppressed use. Its direct-impingement action aligns with the AR-10T lineage, and the flat-top upper provides a full-length Picatinny rail for mounting as needed. There are no iron sights or optics installed, and the upper is configured without a forward assist.
The stock is a Magpul PRS (Gen 2 style) with an adjustable cheekpiece and adjustable length of pull, complemented by a bottom accessory rail. Length of pull is set at 14.5 inches. An A2 pistol grip completes the control layout.
Markings include AR-10T lower rollmarks from ArmaLite, Geneseo, IL, and a white eagle-in-a-square cartouche on the right front of the magwell. As configured, the rifle is set up for single-round loading and is supplied without a magazine.




