Spikes Tactical ST-15 5.56 NATO AR-15 Semi-Auto Rifle, 16 inch M4-Profile Barrel, A2 Front Sight, Flat-Top Picatinny Upper
This Spikes Tactical ST-15 is a 5.56 NATO, AR-15–pattern carbine built around a 16 inch M4-profile barrel with a threaded muzzle and A2 birdcage flash hider. It pairs a fixed A2 front sight base with a polymer flip-up rear sight on a flat-top upper receiver. The lower is marked MOD – ST15 and CAL – MULTI with Spike's Tactical spider logos and color-filled selector markings. It includes two Magpul PMAG Gen M3 magazines, one 30-round and one 10-round.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: There are some wear marks and scratches from prior use and handling. It still seems to function well.
What’s Included
- Polymer flip-up rear sight (installed)
- 1x 30-round Magpul PMAG Gen M3 magazine
- 1x 10-round Magpul PMAG Gen M3 magazine
Built on the AR-15 platform, the ST-15 uses a semi-automatic, direct impingement system with a carbine-length gas setup. The 16 inch M4-profile barrel is threaded and capped with an A2 birdcage flash hider secured by a crush washer. The A2 front sight base integrates a bayonet lug and a front sling swivel.
The flat-top upper receiver provides a Picatinny rail, and this rifle comes with a fixed A2 front sight and a polymer flip-up rear sight. Carbine-length, two-piece ribbed polymer handguards complete the front end.
The lower receiver is marked MOD – ST15 and CAL – MULTI and features Spike's Tactical spider logos with color-filled selector markings. Standard AR-15 controls include a manual, two-position safety, a standard magazine release, and a standard charging handle. The rifle interfaces with STANAG/AR-15 pattern magazines and has a stated maximum capacity of 30+1.
Furniture includes a six-position, M4-style collapsible stock with a rear sling loop and a textured polymer pistol grip. The length of pull is 12.25. Receivers are aluminum with a black finish, and the rifle was made in the USA. Two Magpul PMAG Gen M3 polymer magazines are included: one 30-round and one 10-round.