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Posted: 12/10/2025 1:55:36 PM EDT
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I'm looking for a 5" and a 7" 556 barrel with FSB installed with pins, not screws. Any help is appreciated! TIA |
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USA
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Closest I can find is 7.5". If that doesn't fit the need, you'll have to have to get a FSB pinned on a shorter barrel more than likely. If your handy, you can pin it yourself. https://karrisguns.com/556-75-barrel-with-front-sight-base-.html https://doublestarusa.com/7-5-1-9-hbar-barrel-front-sight-base.html https://www.ftfindustries.com/product/AR-BBL7HBFS.html - OOS |
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WI, USA
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Another 7.5 inch: B Kings 7.5" 5.56 w/FSB (non-F marked) If you can't compromise on a 1/2", that's pretty strict requirements, but ok. If you look at the product, you'd see that by dropping down to 7", the bayonet lug is likely to interfere with muzzle devices and/or their installation. If you're going with any muzzle device wider than an A2, you might need to chop off the bayonet lug to allow it to fit. Once you're down to 5 inches, I believe you'd need a micro gas system (shorter than pistol) to fit the FSB, if it can be done at all. Regardless of whether you can make a 5" barrel work with pistol length gas, you won't have enough length with pistol gas for the FSB and barrel threads. Point is, these are pretty uncommon requirements, so I wouldn't expect to find anything off-the-shelf meeting your needs there. |
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