I bought this one for my cag mre recce build, the traditional FSB could block sight pictures when using the LPVO at ~1-2x magnification. However, I am not a big fan of the PRI-style folding front sight or m16 low-profile gas block. Therefore, this is the best I can find on the market. It fit all of my barrels and doesn't require an FSB cut on the barrel, and it stays tight on my GHK GBB. I will definitely purchase one more for my mk12mod0 build
![[COWCOW Technology] Stainless Steel Ambidextrous Thumb Safety[For Tokyo Marui HI CAPA GBB Series][SV]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_StainlessSteelAmbidextrousThumbSafety_ForTokyoMaruiHICAPAGBBSeries_SV.jpg?v=1706017693&width=950)
![[COWCOW Technology] Stainless Steel Ambidextrous Thumb Safety[For Tokyo Marui HI CAPA GBB Series][BLK]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_StainlessSteelAmbidextrousThumbSafety_ForTokyoMaruiHICAPAGBBSeries_BLK.jpg?v=1706017497&width=950)
![[COWCOW Technology] Stainless Steel Ambidextrous Thumb Safety[For Tokyo Marui HI CAPA GBB Series][BLK]](http://www.sixmm.com/cdn/shop/files/5_6083eedf-839e-432d-81c7-5eb4b00d357c.jpg?v=1706017513&width=950)
![[COWCOW Technology] Complete Aluminium Loading Nozzle W Valve Set[For Action Army AAP-01 GBB Series][Red]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_CompleteAluminiumLoadingNozzleWValveSet_ForActionArmyAAP-01GBBSeries_Red.jpg?v=1692618961&width=950)
![[COWCOW Technology] Complete Aluminium Loading Nozzle W/ Valve Set[For Action Army AAP-01 GBB Series][SV]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_CompleteAluminiumLoadingNozzleWValveSet_ForActionArmyAAP-01GBBSeries_SV.jpg?v=1692618704&width=950)
![[COWCOW Technology] Stainless Steel Ambidextrous Thumb Safety[For Tokyo Marui HI CAPA GBB Series][GLD]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_StainlessSteelAmbidextrousThumbSafety_ForTokyoMaruiHICAPAGBBSeries_GLD.jpg?v=1706017775&width=950)
![[COWCOW Technology] Stainless Steel Ambidextrous Thumb Safety[For Tokyo Marui HI CAPA GBB Series][Rainbow]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_StainlessSteelAmbidextrousThumbSafety_ForTokyoMaruiHICAPAGBBSeries_Rainbow.jpg?v=1706017821&width=950)
![[COWCOW Technology] Complete Aluminium Loading Nozzle W/ Valve Set[For Action Army AAP-01 GBB Series][Rainbow]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_CompleteAluminiumLoadingNozzleWValveSet_ForActionArmyAAP-01GBBSeries_Rainbow.jpg?v=1692619013&width=950)
![[COWCOW Technology] Match Grade Stainless Steel Magazine Release [Rainbow]](http://www.sixmm.com/cdn/shop/files/RAINGBOW2.jpg?v=1724413884&width=950)
![[COWCOW Technology] Complete Aluminium Loading Nozzle W/ Valve Set[For Action Army AAP-01 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_CompleteAluminiumLoadingNozzleWValveSet_ForActionArmyAAP-01GBBSeries_BLK.jpg?v=1692618799&width=950)
![[COWCOW Technology] Match Grade Stainless Steel Magazine Release [BLK]](http://www.sixmm.com/cdn/shop/files/BLK2_001e55d9-b1b2-4d14-92d6-03b54cac61c0.jpg?v=1724413789&width=950)
![[COWCOW Technology] Match Grade Stainless Steel Magazine Release [GLD]](http://www.sixmm.com/cdn/shop/files/GLD222_eaa83c81-0485-4be0-9eee-792c75dbdffc.jpg?v=1724413734&width=950)
![[COWCOW Technology] Match Grade Stainless Steel Magazine Release [SV]](http://www.sixmm.com/cdn/shop/files/SV1_10905d3a-463f-400b-9d7f-67a819a0be87.jpg?v=1724413573&width=950)
![[COWCOW Technology] Steel Enhanced 120% Nozzle Spring[For Tokyo Marui G17 GEN.5 GBB Series]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_SteelEnhanced120_NozzleSpring_ForTokyoMaruiG17GEN.5GBBSeries.jpg?v=1710784553&width=950)
![[COWCOW Technology] Complete Aluminium Loading Nozzle W/ Valve Set[For Action Army AAP-01 GBB Series][GLD]](http://www.sixmm.com/cdn/shop/files/COWCOWTechnology_CompleteAluminiumLoadingNozzleWValveSet_ForActionArmyAAP-01GBBSeries_GLD.jpg?v=1692618910&width=950)