The Midwest Industries railed gas block is machined to same height as A-4 uppers and fits .750 diameter barrels.
Midwest Industries Gas Block, Upper Height, Picatinny, Black MCTAR-UHGB
Mossberg Heatshield for 500/590 12 Gauge, Parkerized
$42.39
Midwest AK Railed Gas Tube Standard
$109.95
Midwest Upper Height Railed Gas Block
$73.95
11 in stock
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