Spike's Tactical ST-15 5.56 NATO AR-15 Carbine, 16" M4 Barrel, FDE Finish, MBUS Rear Sight, 3 Mags, Hard Case
This Spike's Tactical ST-15 is a 5.56 NATO AR-15 carbine finished in FDE and set up with a 16" M4-profile barrel, carbine-length gas system, and a flat-top upper with T-marked Picatinny rail. It features an F-marked A2 front sight base with bayonet lug and a Magpul MBUS flip-up rear sight. The rifle comes with three magazines, a hard plastic case, and the original Spike's Tactical user manual, and is noted to be in excellent condition.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are some very minor scratches and blemishes present. The bore is clean and shiny.
What’s Included
- Hard plastic rifle case
- Spike's Tactical user manual
- Safe Tech Safe T Round empty-chamber indicator
- Magpul MBUS polymer flip-up rear sight (installed)
- 2x 30-round magazines
- 1x 10-round magazine
- Magazines are Magpul PMAG polymer type and Lancer polymer type with steel feed lips
The ST-15 is built on the AR-15 platform and uses a semi-automatic, direct-impingement operating system. It has a 16" M4-profile barrel with a threaded muzzle and A2 birdcage flash hider, paired with a carbine-length gas system for classic carbine handling. A fixed, F-marked A2 front sight base with bayonet lug and front sling swivel is matched to a Magpul MBUS flip-up rear sight for a ready iron-sight setup.
The flat-top upper receiver features a T-marked Picatinny rail with T4–T12 positions visible, plus a forward assist, shell deflector, and ejection-port dust cover. Controls include a manual safety selector with pictogram SAFE/FIRE markings. The rifle accepts detachable STANAG-pattern magazines and is rated for a 30+1 capacity.
Furniture is carbine-correct with a two-piece, carbine-length polymer handguard (Magpul MOE-type), a 6-position collapsible stock, and a Magpul FDE pistol grip. Length of pull is approximately 10 to 13.5 inches. The carbine receiver extension is secured with a castle nut and end plate.
Finished in FDE, the rifle shows Spike's Tactical branding and model details. The lower receiver carries the spider logo along with CAL MULTI and MOD ST15 markings, while the right side is marked SPIKE'S TACTICAL APOPKA, FL U.S.A. The spider logo also appears on the charging handle and bolt carrier. Made in the USA.




