Spike's Tactical Billet Upper Gen2 Mil-Spec Receiver - Premium AR-15 ComponentSpike's Tactical$253.13
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Spike's Tactical
The Spike's Tactical AR-15/M16 M4 upper receiver is a complete, fully assembled upper ready to drop onto your existing AR lower and get to the range or field. Built to military specifications with every component manufactured, finished, and tested for reliability, this upper delivers the kind of solid performance you expect from Spike's reputation for no-nonsense, American-made parts. Whether you're building a patrol rifle, home-defense carbine, or upgrading an existing platform, this is a straightforward, proven upper that works.
The 16-inch M4-profile barrel is chambered in 5.56 NATO and built tough: hard-chromed chamber and bore resist corrosion even in harsh conditions, while high-pressure testing and magnetic particle inspection verify barrel strength before it ships. Extended M4 feed ramps keep ammunition feeding reliably during rapid fire, and the design includes a cutout compatible with grenade, tear gas, or bean bag launchers if your mission calls for it. You get a standard M4 plastic handguard, A2 flash suppressor, bayonet lug, and front sling swivel right out of the box.
Spike's doesn't do cosmetic shortcuts: the receiver top and bolt carrier feature their spider logo via laser etch that won't fade or wear off, and T-markings are laser-etched directly into the rail slots for the same longevity. This is the kind of attention to detail that makes for a rifle you can trust when it matters.
| Product Type | Complete Upper Receiver Assembly |
| Barrel Length | 16 inches |
| Barrel Profile | M4 |
| Chambering | 5.56 NATO |
| Chamber/Bore Finish | Hard Chrome |
| Feed Ramps | Extended M4 |
| Included Handguard | Standard M4 Plastic |
| Muzzle Device | A2 Flash Suppressor |
| Additional Features | Bayonet Lug, Front Sling Swivel, Launcher Cutout |
This upper is designed to install on AR-15/M16/M4 lower receivers. Compatibility is standard across these platforms, but as always, verify your specific lower before purchasing.
The 16-inch barrel is chambered for 5.56 NATO ammunition.
The upper arrives fully assembled and includes a standard M4 plastic handguard, A2 flash suppressor, bayonet lug, and front sling swivel. It is ready to attach to a lower receiver and function.
Yes. Every barrel is high-pressure tested and undergoes magnetic particle inspection to verify it meets military specifications and confirm strength before shipment.
Spike's Tactical
The Spike's Tactical AR-15/M16 M4 upper receiver is a complete, fully assembled upper ready to drop onto your existing AR lower and get to the range or field. Built to military specifications with every component manufactured, finished, and tested for reliability, this upper delivers the kind of solid performance you expect from Spike's reputation for no-nonsense, American-made parts. Whether you're building a patrol rifle, home-defense carbine, or upgrading an existing platform, this is a straightforward, proven upper that works.
The 16-inch M4-profile barrel is chambered in 5.56 NATO and built tough: hard-chromed chamber and bore resist corrosion even in harsh conditions, while high-pressure testing and magnetic particle inspection verify barrel strength before it ships. Extended M4 feed ramps keep ammunition feeding reliably during rapid fire, and the design includes a cutout compatible with grenade, tear gas, or bean bag launchers if your mission calls for it. You get a standard M4 plastic handguard, A2 flash suppressor, bayonet lug, and front sling swivel right out of the box.
Spike's doesn't do cosmetic shortcuts: the receiver top and bolt carrier feature their spider logo via laser etch that won't fade or wear off, and T-markings are laser-etched directly into the rail slots for the same longevity. This is the kind of attention to detail that makes for a rifle you can trust when it matters.
| Product Type | Complete Upper Receiver Assembly |
| Barrel Length | 16 inches |
| Barrel Profile | M4 |
| Chambering | 5.56 NATO |
| Chamber/Bore Finish | Hard Chrome |
| Feed Ramps | Extended M4 |
| Included Handguard | Standard M4 Plastic |
| Muzzle Device | A2 Flash Suppressor |
| Additional Features | Bayonet Lug, Front Sling Swivel, Launcher Cutout |
This upper is designed to install on AR-15/M16/M4 lower receivers. Compatibility is standard across these platforms, but as always, verify your specific lower before purchasing.
The 16-inch barrel is chambered for 5.56 NATO ammunition.
The upper arrives fully assembled and includes a standard M4 plastic handguard, A2 flash suppressor, bayonet lug, and front sling swivel. It is ready to attach to a lower receiver and function.
Yes. Every barrel is high-pressure tested and undergoes magnetic particle inspection to verify it meets military specifications and confirm strength before shipment.
