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What is the thread dimensions at the end of this device? Thx — 2 Answers

by dp17402, from PA, United States Asked on April 15, 2022

Name Griffin Armament A2 Blast Shield/Optimus A2 Mount Muzzle Devices (5)
$175.00 $157.94 Save 10%
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Answered by Ethan, Gear Expert, from IL, United States, on May 06, 2022

Griffin Armament does not provide the thread pitch for the A2 Blast Shield/Optimus A2 Mount Muzzle Device. They state it can be used on 5.56mm AR's to and with the 30SD flash comp it will support centerfire calibers up to .308 Winchester. I would recommend reaching out to them directly for more specific information.

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Answered by S, member, from AR, United States, on September 22, 2023

It appears to only fit 5.56 sized ~.80 width, the 308 size has .86mm and it won’t fit it. Just wasted money on 3 A2 bird cages for my blackouts and ar10

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