Shipping Notice for USA Customers UPDATED 9th Nov., 2025
Due to recent updates in the tariff policy by the U.S. government, shipments from the UK to the USA may incur duties or import taxes, ranging from 20% to 40% of the total value. As a result, we will mark most items at 50% off of the original order value. In order to minimize the import duty charges, we will take steps that we hope will not cause any issues for you.
![[MadDog] Navy Seal Front Rail System Conversion Kit[MK18 MLOK Ver.][For WE-Tech M4 GBB Series]](http://www.sixmm.com/cdn/shop/files/MadDog_NavySealFrontRailSystemConversionKit_MK18MLOKVer._ForWE-TechM4GBBSeries.jpg?v=1730849021&width=950)
![[MadDog] Navy Seal Front Rail System Conversion Kit[MK18 MLOK Ver.][For WE-Tech M4 GBB Series]](http://www.sixmm.com/cdn/shop/files/MadDog_MK18RIS310.5ConversionKit_ForWE-TechM4GBBSeries_FDE_Copy_fe85ff86-e101-4290-b90d-39f04cb2ff92.jpg?v=1730849025&width=950)
![[MadDog] Navy Seal Front Rail System Conversion Kit[MK18 MOD 1 Ver.][For WE-Tech M4 GBB Series] (Copy)](http://www.sixmm.com/cdn/shop/files/MadDog_NavySealFrontRailSystemConversionKit_MK18MOD1Ver._ForWE-TechM4GBBSeries_Copy.jpg?v=1730848842&width=950)
![[MadDog] Navy Seal Front Rail System Conversion Kit[MK18 MOD 1 Ver.][For WE-Tech M4 GBB Series] (Copy)](http://www.sixmm.com/cdn/shop/files/MadDog_MK18RISConversionKit_ForWE-TechM4GBBSeries_FDE_1_cfc910dc-332a-4fd7-8556-51eb5173a799.webp?v=1730848852&width=950)
![[MadDog] Special Force Front Rail System Conversion Kit[URGI Ver.][For WE-Tech M4 GBB Series]](http://www.sixmm.com/cdn/shop/files/MadDog_SpecialForceFrontRailSystemConversionKit_URGIVer._ForWE-TechM4GBBSeries.jpg?v=1730823766&width=950)
![[MadDog] Special Force Front Rail System Conversion Kit[URGI Ver.][For WE-Tech M4 GBB Series]](http://www.sixmm.com/cdn/shop/files/MadDog_URGIMK1610.5ConversionKit_ForWE-TechM4GBBSeries_FDE_c2c5040a-7209-4e5e-a709-e5283b1bfa17.webp?v=1730823773&width=950)
![[MadDog] 13.5 inch GEI Style MK16 URGI Rail Handguard W/ MWS Outer Barrel[DDC]](http://www.sixmm.com/cdn/shop/files/MadDog_13.5inchGEIStyleMK16URGIRailHandguard_DDC.jpg?v=1725020007&width=950)
![[GG] URGI 10.5 inch GEI Style MK16 Rail Handguard [BLK]](http://www.sixmm.com/cdn/shop/files/ZPS-MARUI-M4-037-1L.jpg?v=1721808745&width=950)
![[GG] URGI 10.5 inch GEI Style MK16 Rail Handguard [BLK]](http://www.sixmm.com/cdn/shop/files/ZPS-MARUI-M4-037-2L.jpg?v=1721808746&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_3_986a19c1-9a88-4b0d-a169-69e9ec9753e4.webp?v=1673181187&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_4_851b7a83-4844-4cd5-95b7-e9ce993d285b.webp?v=1673181187&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For Systema M4 PTW Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.5inchAlloyHandguard_ForVFCM4GBBRifle_BLK_1.webp?v=1673180673&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For Systema M4 PTW Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.5inchAlloyHandguard_ForVFCM4GBBRifle_BLK_3.webp?v=1673180673&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For WE-Tech M4 GBB Rifle][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.5inchAlloyHandguard_ForVFCM4GBBRifle_BLK_3_92276abc-e13a-4a17-acce-dfc368e00a89.webp?v=1673180700&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For WE-Tech M4 GBB Rifle][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.5inchAlloyHandguard_ForVFCM4GBBRifle_BLK_4_45f4f763-510a-45ea-b7a4-d04b5915cecf.webp?v=1673180701&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For WE-Tech M4 GBB Rifle][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.5inchAlloyHandguard_ForVFCM4GBBRifle_BLK_1_dd0e2e9a-1d4c-4a0c-89df-d445aa57daed.webp?v=1673180744&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For WE-Tech M4 GBB Rifle][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.5inchAlloyHandguard_ForVFCM4GBBRifle_BLK_2_1a024f93-99ba-4d3c-9941-82fad327d1ea.webp?v=1673180744&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For Tokyo Marui M4 MWS Series][BLK]](http://www.sixmm.com/cdn/shop/products/3_f12f2fe1-f333-4a34-98ba-d124a097d290.webp?v=1673180147&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For Tokyo Marui M4 MWS Series][BLK]](http://www.sixmm.com/cdn/shop/products/4_eb484b43-5f65-4333-8838-6769018db089.webp?v=1673180147&width=950)
![[Z-Parts] 10.5inch Alloy Handguard [For VFC M4 GBB Rifle][BLK]](http://www.sixmm.com/cdn/shop/products/3_7a99285a-2ef2-4e32-a253-5074cfabf744.webp?v=1673179574&width=950)
![[Z-Parts] 9.3inch Alloy Handguard for VFC M4 GBB Rifle](http://www.sixmm.com/cdn/shop/products/4_f5f5babc-f3fd-4695-a1f2-6bed78720485.webp?v=1673179574&width=950)
![[Z-Parts] Mk16 10.5inch Handguard [For VFC M4 GBB Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_3_b31e335a-c854-4ed8-a22f-973465458274.webp?v=1673179068&width=950)
![[Z-Parts] Mk16 10.5inch Handguard [For VFC M4 GBB Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_4_c40f39c8-0e33-471e-bab0-e42db1364815.webp?v=1673179068&width=950)
![[Z-Parts] Mk16 10.5inch Handguard [For VFC M4 GBB Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_3_215fd5dd-2a93-46e8-9ced-bb068bde05df.webp?v=1673178739&width=950)
![[Z-Parts] Mk16 10.5inch Handguard [For VFC M4 GBB Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_4_ac2ae977-f966-491e-9c76-b2f34fdde55c.webp?v=1673178739&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_3_a0ce5779-ba1b-40a1-9486-3e5722eab0b5.webp?v=1673177679&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_4_6da4a7c9-62fb-4cfd-a014-8edd73095ac1.webp?v=1673177679&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_3.webp?v=1673177464&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_4.webp?v=1673177465&width=950)
![[MadDog] 10.5 inch GEI Style MK16 Rail Handguard [Tan]](http://www.sixmm.com/cdn/shop/files/MadDog_10.5inchGEIStyleMK16RailHandguard_Tan_2.webp?v=1750153269&width=950)
![[MadDog] 10.5 inch GEI Style MK16 Rail Handguard [Tan]](http://www.sixmm.com/cdn/shop/files/MadDog_10.5inchGEIStyleMK16RailHandguard_Tan.jpg?v=1750153390&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][Green]](http://www.sixmm.com/cdn/shop/products/1_f5666f48-2635-4768-ad77-1499cec2eef8.jpg?v=1633610860&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][Green]](http://www.sixmm.com/cdn/shop/products/2_928b65b1-d70a-4794-8ad9-0ccb9064b53c.jpg?v=1633610860&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_BLK_1.jpg?v=1633610770&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_BLK_4.jpg?v=1633610756&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_2_04b16dd4-1aa3-4d97-bd8d-27b2a116b812.jpg?v=1633610421&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_4_b0c51649-f8ca-401a-a6d1-a3b4107a5b61.jpg?v=1633610420&width=950)
![[Angry Gun] Aluminum MK16 M-Lok 10.5 inch Rail [Gen 2] for AEG / GBB / PTW [Sopmod Block III] [BLK]](http://www.sixmm.com/cdn/shop/products/AG_MK16_105-800x800.jpg?v=1618815347&width=950)
![[Angry Gun] Aluminum MK16 M-Lok 10.5 inch Rail [Gen 2] for AEG / GBB / PTW [Sopmod Block III] [BLK]](http://www.sixmm.com/cdn/shop/products/AG-MK16G2-105-BK-1L.jpg?v=1618815347&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_3.jpg?v=1633610274&width=950)
![[Z-Parts] Mk16 10.5 inch Handguard [For Tokyo Marui M4 MWS Series][TAN]](http://www.sixmm.com/cdn/shop/products/Z-Parts_Mk1610.5inchHandguard_ForTokyoMaruiM4MWSSeries_TAN_4.jpg?v=1633610274&width=950)
![[Z-Parts] Mk16 9.3inch Handguard for Marui SOPMOD M4 AEG (BLK)](http://www.sixmm.com/cdn/shop/products/1_37613b03-f09f-4b8a-a3ac-401c691be743.jpg?v=1611902443&width=950)
![[Z-Parts] Mk16 9.3inch Handguard for Marui SOPMOD M4 AEG (BLK)](http://www.sixmm.com/cdn/shop/products/systema-m4-010-01_6df4a381-d664-49fa-98ab-60e5d5e1609d.jpg?v=1611902443&width=950)
![[Z-Parts] Mk16 9.3inch Handguard for Marui MWS GBB (BLK)](http://www.sixmm.com/cdn/shop/products/systema-m4-010-01_724cc61b-dba4-4129-87e0-a20529c58590.jpg?v=1611902217&width=950)
![[Z-Parts] Mk16 9.3inch Handguard for Marui MWS GBB (BLK)](http://www.sixmm.com/cdn/shop/products/systema-m4-010-02_54a76894-9fcd-4e61-bede-3ea87e876668.jpg?v=1611902217&width=950)
![[Z-Parts] Mk16 9.3inch Alloy Handguard for SYSTEMA M4 AEG (Tan)](http://www.sixmm.com/cdn/shop/products/4_6f76c00f-dbf9-4511-8f24-a8e551f23fdd.jpg?v=1611901984&width=950)
![[Z-Parts] Mk16 9.3inch Alloy Handguard for SYSTEMA M4 AEG (Tan)](http://www.sixmm.com/cdn/shop/products/systema-m4-012-01_8b7c1c93-20c6-4fb9-a608-5630c6c40d99.jpg?v=1611901985&width=950)
