FBI HRT Federal Rail and Barrel Kit - 11.5" Geissele - Daniel Defense
Starter build kit with Geissele Mk4 Federal FBI rail
If you are looking for the basics for an FBI HRT build, this is a great start. Charlie's has partnered with Potomac Armory to bring you a balance of the right parts and not break the bank. This is the current produciton Geiessele 10" OD Green Federal (FBI) rail with laser etched T-marks. We have selected a Daniel Defense Cold Hammer Forged 11.5" barrel with a Troy gas block and stainless steel Remcon Defense gas tube. A Surefire 4-Prong 'fast attach' flash hider rounds out this offering.
The rail and barrel kit will fit a mil-spec upper receciver. Potomac recommends forged receivers, like Colt, LMT, Daniel Defense, Bravo Company, FN or Rock River to name a few. Billet receivers sometimes do not do as well timing to the Geissele rail.
Note: All items arrive in a box unassembled.
- Geissele Mk4 Federal 10" OD Green rail with laser etched T-markings
- Daniel Defense 11.5" CHF 1:7 twist 556 NATO chambered barrel with chrome lining
- Surefire FH556-215A Fast Attach 4-prong flash hider (this is an earlier model and will fit FA556 suppressor, but not the SOCOM generation suppressors) with DLC black coating
- Troy low profile gas block with two bottom set screws
- Remcon premium military contract carbine length stainless steel gas tube
- Geissele barrel nut and bolts to attach
- smaller allen wrench for tightening Mk4 rail tabs
- gas block roll pin for attaching the gas tube
- Surefire indexed washers for attaching and timing the flash hider
- Small Rockset tube to apply to barrel to attach the flash hider