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AR-15, AR-10, and 458 SOCOM adjustable gas blocks.  Gas blocks used by Bishop Ammunition & Firearms are in low profile only.  They are available in black oxide, titanium, and adjustable titanium which are made by SSL.  The adjustable gas block in titanium by SSL is used due to its patented simplistic design, reliability, ease of use and maintenance.
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Low Profile Micro .750 Gas Block Low Profile Titanium Gas Block Muzzle Brake 458 Socom 450 Bushmaster
.750 Low Profile Steel Gas Block with Roll Pins & Wrench -Black
List Price: $24.99
Our Price: $19.99
You save $5.00!
Muzzle Brake 458 SOCOM 450 Bushmaster
List Price: $100.00
Our Price: $75.00
You save $25.00!
Hardened Steel Low Profile Micro Gas Block .750" Low Profile, Ultra Light Titanium Gas Block 458 SOCOM or 450 Bushmaster Muzzel Brake
SLR  Sentry 7 Titanium Adjustable Gas Block
SLR Adjustable Gas Block Titanium .750"
List Price: $169.99
Our Price: $159.99
You save $10.00!
Titanium Adjustable Gas Block - Sentry 7 by SLR