FBI HRT-spec 11.5" 5.56 NATO complete upper, built by Nona Guns from the parts the Hostage Rescue Team actually runs, topped with two pieces that are nearly impossible to find in this colorway.

UPPER ONLY. One photo shows this upper installed on a lower so you can see the complete HRT setup. The lower receiver, stock, pistol grip, magazine and sling in that photo are for reference only and are NOT included. Every other photo shows exactly what you get.

Clone-correct recipe: Colt receiver, Colt bolt carrier group, Geissele Airborne charging handle in OD Green, Colt 11.5" chrome-lined heavy-profile barrel, Geissele Super Gas Block installed the Geissele "bombproof" way, and the Geissele Mk4 Super Modular Rail Federal in OD Green, the rail the FBI selected for the HRT carbines. Finished with an SD Tactical Arms Plan B Titanium Cyclone 2.0 brake (Grade 5 titanium, Plan B / Q-pattern suppressor-ready). Torqued, timed, headspaced and function-checked.

What's included

- Colt forged 7075-T6 upper receiver, forward assist, dust cover, M4 feed ramps
- Colt 11.5" chrome-lined heavy-profile barrel, 5.56 NATO, 1:7 twist, 1/2x28
- SD Tactical Arms Plan B Titanium Cyclone 2.0 muzzle brake, 1/2x28
- Geissele Super Gas Block (.750), pinned, standard carbine gas tube
- Geissele Super Modular Rail Mk4 M-LOK 10", OD Green (05-430ODG)
- Colt bolt carrier group (M16-profile, properly staked gas key)
- Geissele Airborne Charging Handle, OD Green (05-178ODG)
- Magpul RVG vertical grip (MAG412), OD Green
- Unity Tactical FAST Micro mount, OD Green (the rare HRT colorway), 2.26" optical height
- Streamlight ProTac Rail Mount HP-X Pro light with SL-B26 rechargeable pack, remote pressure switch and tail cap, on an ADM AD-SF Scout offset QD mount
- SIG SAUER ROMEO4T-PRO red dot (SOR44101), brand new, zeroed, with original box and all papers

Condition
Pre-owned, one owner (Nona Guns' own build). 50 rounds fired, all to zero and confirm the Romeo4T-Pro at 50 m and 200 m with 62 gr M855. No rust, no pitting, bore mirror-bright; rail and receiver show only handling marks.

Good to know
An upper receiver is not a firearm: no FFL is needed and it ships straight to you. An 11.5" upper may only be installed on an AR pistol lower or a lawfully registered short-barreled rifle.

Prefer it without the optic, mount or light? Ask us for the upper-only price. Ships directly to you, no FFL needed, or local pickup in Lake Nona, Orlando by appointment. Shipping: free. More photos and REDACTED.

NONA GUNS - licensed FFL dealer in Lake Nona, Orlando, FL. Local pickup by appointment (Form 4473 and background check at pickup), or we ship to your local FFL nationwide. FFL transfers: $25 per firearm. All federal, Florida and local laws apply.