Gas System Sold out BRT MicroPin Mk12 Gas Block - .750" BRT MicroPin Mk12 Gas Block - .750" $59.95 Sold out BRT MicroPin Gas Block - .750" BRT MicroPin Gas Block - .750" $49.95 Sold out BRT MicroPin Gas Block - .625" BRT MicroPin Gas Block - .625" $49.95 BRT Gas Block Pin Kit - Coil Pin BRT Gas Block Pin Kit - Coil Pin $5.95 BRT MarkBlue Gas Tube - BRT EXT BRT MarkBlue Gas Tube - BRT EXT $16.95 Sold out BRT MarkBlue Gas Tube - BRT EXC BRT MarkBlue Gas Tube - BRT EXC $16.95 Sold out BRT MarkBlue Gas Tube - BRT PDW BRT MarkBlue Gas Tube - BRT PDW $16.95 Remove & Replace Gas Block or FSB Remove & Replace Gas Block or FSB $25.00 Pin BRT Gas Block Pin BRT Gas Block $40.00 BRT Gas Block Screws ( 6 pcs ) BRT Gas Block Screws ( 6 pcs ) $4.95 BRT Gas Tube Pins ( 3 pcs ) BRT Gas Tube Pins ( 3 pcs ) $4.95 BRT Gas Block Pins ( 3 pcs ) BRT Gas Block Pins ( 3 pcs ) $4.95 BRT MarkBlue Gas Tube - Midlength BRT MarkBlue Gas Tube - Midlength $14.95 BRT MarkBlue Gas Tube - Carbine BRT MarkBlue Gas Tube - Carbine $14.95 BRT MarkBlue Gas Tube - Pistol BRT MarkBlue Gas Tube - Pistol $14.95 BRT MarkBlue Gas Tube - Intermediate BRT MarkBlue Gas Tube - Intermediate $14.95 BRT MarkBlue Gas Tube - Rifle BRT MarkBlue Gas Tube - Rifle $14.95 Sold out BRT MarkBlue Gas Tube - Midlength Black BRT MarkBlue Gas Tube - Midlength Black $16.95