FBA Low Profile

FBA Low Profile



Non-Standard Size

If you are ordering a non-standard size, please input size requested below ($75.00 will be added to your order). If your desired thread size is too atypical or there is some other issue, you may be contacted for a quotation, as the $75 surcharge may not cover all operations.
Leave this field blank if you are ordering one of the standard sizes.

Host Firearm and Caliber

What firearm, caliber and Length of threads are we looking at for your custom application? This is optional data for the custom thread section, but will help us better serve your needs if we have it.

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These Low Profile Fixed Barrel Adapters are light and fast! Machined of 6061 Aluminum to be lighter and thinner than the original FBA, these bad boys come in at only .4 oz!. The Low Profile is only .65″ overall, adding a mere .1″ to the length of the silencer when in use. The Low Profile FBA is the preferred firearm silencer adapter for lower pressure rounds like the 9×19 or 300 BLK, but can also handle rounds like the 5.56 NATO when used on barrels at least 16″ long.

These adapters are also backwards compatible with all older Mystic and Infiniti silencers.

* Note: The MPX Lo Pro FBA and the 18×1 mm Scorpion FBA have external wrench flats for removal, and add about .5″ to the overall length of the silencer.

Additional information


1/2-28, 5/8-24, 1/2-36, 13.5-1mm LH, Sig MPX, 18x1mm CZ, .578×28, NON-STANDARD

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