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What is the min. height of the block to clear a hand guard? — 2 Answers

by Bobby Merritt, from LA, United States Asked on April 1, 2020

Name POF USA Dictator Adjustable Gas Block (3.6)
$167.00 $155.00 Save $12.00
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A
Answered by Davis N., Gear Expert, from IL, United States, on February 05, 2021

It was reported that this block is approximately 1.570 overall height, and approximately .986" from center bore to top of unit.

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A
Answered by Greg, guest, from TX, United States, on May 11, 2021

For 5.56 blocks the roof height above the barrel is exactly .620" above the barrel (space between top edge of barrel bearing surface of journal to top of block). For 7.62 blocks the roof height is .680". Other dims are .195" trough height for both 5.56 and 7.62 blocks (space between bottom edge of barrel bearing surface of journal to bottom of block). Each side of both blocks is also .080". Thickness of each block's gas port section (section containing the adjustment and gas tube housing) side-to-side measurement is .430", for those having vaulted or minimalist rails.

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