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.
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![[Z-Parts] Mk16 13.5 inch Alloy Handguard for SYSTEMA M4 AEG](http://www.sixmm.com/cdn/shop/products/3_d09ea924-b79d-40b5-8dd1-171dcc554711.jpg?v=1611900434&width=950)
![[Z-Parts] Mk16 13.5 inch Alloy Handguard for SYSTEMA M4 AEG](http://www.sixmm.com/cdn/shop/products/mk16-handguard-black-001.jpg?v=1611900434&width=950)
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![[Z-Parts] Mk16 13.5inch Handguard for Marui SOPMOD M4 AEG (BLK)](http://www.sixmm.com/cdn/shop/products/mk16-handguard-black001_ce3c0a12-535f-4fe1-b361-36c05f871c22.jpg?v=1611901344&width=950)
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![[Z-Parts] Mk16 13.5inch Handguard for Zparts Marui M4 (Tan)](http://www.sixmm.com/cdn/shop/products/systema-m4-012-03.jpg?v=1611651013&width=950)
![[Z-Parts] Mk16 9.3 inch Alloy Handguard for SYSTEMA M4 AEG](http://www.sixmm.com/cdn/shop/products/9.jpg?v=1611901536&width=950)
![[Z-Parts] Mk16 9.3 inch Alloy Handguard for SYSTEMA M4 AEG](http://www.sixmm.com/cdn/shop/products/systema-m4-010-01_c5c57831-0158-4350-b6c9-e5b1adf0e5cf.jpg?v=1611901536&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)
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![[Z-Parts] Mk16 Barrel Nut for Marui MWS M4 GBB (Tan)](http://www.sixmm.com/cdn/shop/products/img_0150-logo_6938ad60-9551-4dcb-85f1-8dc618a37e9d.jpg?v=1611651227&width=950){kind=logo}
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![[Z-Part] Mk16 Barrel Nut for GHK M4 GBB Rifle (Tan)](http://www.sixmm.com/cdn/shop/products/201903201352560.jpg?v=1611305999&width=950)
![[Z-Part] Mk16 Barrel Nut for GHK M4 GBB Rifle (Tan)](http://www.sixmm.com/cdn/shop/products/201903201352562.jpg?v=1611306003&width=950)
![[Z-Parts] Mk16 Barrel Nut for KJ Works M4 GBB Rifle (Tan)](http://www.sixmm.com/cdn/shop/products/img_0150-logo_b34cc260-c6be-4768-8473-ae44d0324700.jpg?v=1611736921&width=950){kind=logo}
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![[Z-Parts] Mk16 Barrel Nut for KSC M4 GBB Rifle (Tan)](http://www.sixmm.com/cdn/shop/products/img_0150-logo_9a857833-7006-4aaa-bd64-53972deccd00.jpg?v=1611737088&width=950){kind=logo}
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![[Z-Parts] MK16 Barrel Nut for VFC M4 AEG Rifle](http://www.sixmm.com/cdn/shop/products/img_0150-logo_47ab96a2-7406-4a3c-88d4-ec055ff25b9e.jpg?v=1611726273&width=950){kind=logo}
![[Z-Parts] MK16 Barrel Nut for VFC M4 AEG Rifle](http://www.sixmm.com/cdn/shop/products/img_0152-log_8999a118-c34e-47d2-9e62-53cd76a91a4b.jpg?v=1611726276&width=950)
