Description
Design inspired by the XM-177 Moderator, this extended flash hider will extend a 12.5″ barrel to legal non-NFA length when pin and welded.
- CNC machined from bar steel
- Heat treated for strength
- Phosphate coated to protect from corrosion
- Threaded 1/2-28
- Bore sized for use on both 5.56mm and 9mm barrels
- 5 flash hiding ports, sealed bottom similar to an A2 flash hider
- 4.15″ over all length
- 1.0″ diameter
- Adds approximately 3.56″ to overall length of barrel when pinned and welded.
- .125″ hole pre-drilled for pin and weld
- Weight:
- Requires standard .750″ wrench for installation and Crush Washer
PRODUCT SKU: AR15-XM177-FH-001-4″








John G. (verified owner) –
JACK H. (verified owner) –
Ernest E. (verified owner) –
Need to shoot it a bit more but I was hoping for a poor man’s halbeck device / sasquatch sized flash hider, and it seems to do just that. I need to tweek the position, strongly recommend ordering a crush washer to go along with this.
Timothy Bonds (verified owner) –
Always a good experience and the products are great. Can’t wait to place another order. IYAAYAS
Moises Juarez (verified owner) –
Freaknn looks awesome showed have got twoo
byron j. (verified owner) –
Nice
J.P. (verified owner) –
Nice retro flash hider for my XM177E2 build. The finish looked a bit rough when I first received it. After emailing BFK, they replied the next day advising me to oil it, manganese phosphate finishes always look spotty/streaked. I oiled it and left it in a plastic baggie overnight and it looks much better. I’ll include before and after pictures for you, if you like. The price was great, as was the processing and shipping. Thanks for the fast reply and the advice, BFK!