Shipping Notice for USA Customers UPDATED 16th Jan., 2026
1. US import tariffs (duties) must be paid before the goods enter the United States. These charges are not refunded by the US government. Please make sure that the tariffs are paid in advance.
2. 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.
![[Z PARTS] Aluminium HK416 Receiver Set[For Systema Infinity PTW Kit Only][BLK]](http://www.sixmm.com/cdn/shop/files/SYSTEMA-416-034-1.webp?v=1767098371&width=950)
![[Z PARTS] Aluminium HK416 Receiver Set[For Systema Infinity PTW Kit Only][BLK]](http://www.sixmm.com/cdn/shop/files/SYSTEMA-416-034-2.webp?v=1767098373&width=950)
![[Z-Parts[ CNC Steel Outer Barrel[For KSC USP MATCH GBB][BLK]](http://www.sixmm.com/cdn/shop/products/11447__Z-Parts__CNC_Steel_Outer_Barrel_For_KSC_USP_MATCH_GBB_BLK_1.jpg?v=1610430072&width=950)
![[Z-Parts[ CNC Steel Outer Barrel[For KSC USP MATCH GBB][BLK]](http://www.sixmm.com/cdn/shop/products/11447__Z-Parts__CNC_Steel_Outer_Barrel_For_KSC_USP_MATCH_GBB_BLK__1_1.jpg?v=1610430075&width=950)
![[Z-Parts] 9.3inch Alloy Mk16 Handguard for Marui MWS M4 GBB (Tan)](http://www.sixmm.com/cdn/shop/products/4_568f0590-6522-4f5f-b567-d4d7a6683d31.jpg?v=1611812289&width=950)
![[Z-Parts] 9.3inch Alloy Mk16 Handguard for Marui MWS M4 GBB (Tan)](http://www.sixmm.com/cdn/shop/products/systema-m4-012-01_36acaf12-f763-428b-aa7b-9218255a9cdb.jpg?v=1611812290&width=950)
![[Z-Parts] SYSTEMA M4 AEG Aluminium Forged Lower Receiver (BLK)](http://www.sixmm.com/cdn/shop/products/lower7-1-1.jpg?v=1611908702&width=950)
![[Z-Parts] SYSTEMA M4 AEG Aluminium Forged Lower Receiver (BLK)](http://www.sixmm.com/cdn/shop/products/lower9-1-1.jpg?v=1611908702&width=950)
![[Z-Parts] Mk16 DD GOV 10.3 inch Outer Barrel for SYSTEMA M4 AEG](http://www.sixmm.com/cdn/shop/products/2_2a925719-cd72-4752-b4f8-57e6cdb19323.jpg?v=1611903965&width=950)
![[Z-Parts] Mk16 DD GOV 10.3 inch Outer Barrel for SYSTEMA M4 AEG](http://www.sixmm.com/cdn/shop/products/outer-barrel002_910f7cd3-5f74-4790-8f1c-ce66ed483bd1.jpg?v=1611903966&width=950)
![[Z-Parts] 1/8" Pin Head Punch](http://www.sixmm.com/cdn/shop/files/tool1_updated.jpg?v=1724412349&width=950)
![[Z-Parts] 1/8" Pin Head Punch](http://www.sixmm.com/cdn/shop/files/2_e95c2fdd-2c3d-47c9-afcd-7bcbf71cda9c.jpg?v=1724412350&width=950)
![[Z-Parts] 10 inch CNC Steel Outer Barrel[-14mm CCW][For Umarex 416 GBB Series]](http://www.sixmm.com/cdn/shop/files/httpimg3.redwolfairsoft.comuploadproductimgzps-vfc-hk416-002-2l.jpg?v=1687511281&width=950)
![[Z-Parts] 10 inch CNC Steel Outer Barrel[-14mm CCW][For Umarex 416 GBB Series]](http://www.sixmm.com/cdn/shop/files/httpimg3.redwolfairsoft.comuploadproductimgzps-vfc-hk416-002-5l.jpg?v=1687511282&width=950)
![[Z-Parts] 10.3inch DD GOV Outer Barrel [For VFC M4 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.3inchDDGOVOuterBarrel_ForVFCM4GBBSeries_BLK_2.jpg?v=1654690619&width=950)
![[Z-Parts] 10.3inch DD GOV Outer Barrel [For VFC M4 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_10.3inchDDGOVOuterBarrel_ForVFCM4GBBSeries_BLK_3.jpg?v=1654690619&width=950)
![[Z-Parts] 10.3inch DD GOV Outer Barrel for VIPER M4 GBB (Blk)](http://www.sixmm.com/cdn/shop/products/1_29764275-225e-4cdb-9f54-5534270fd096.jpg?v=1611560549&width=950)
![[Z-Parts] 10.3inch DD GOV Outer Barrel for VIPER M4 GBB (Blk)](http://www.sixmm.com/cdn/shop/products/4_8f2f4c2f-ebcd-4466-9f08-673ffea2be86.jpg?v=1611560554&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel for WE MSK/ACR GBB [BLK]](http://www.sixmm.com/cdn/shop/products/1_c309d148-e85c-4747-9746-99837a3bb608.jpg?v=1619500095&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel for WE MSK/ACR GBB [BLK]](http://www.sixmm.com/cdn/shop/products/2_6d6118b6-13cb-4c08-be54-0bd147f8293c.jpg?v=1619500097&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel Set for KSC M4 GBB (Blk)](http://www.sixmm.com/cdn/shop/products/ksc-m4-001-01.jpg?v=1611560602&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel Set for KSC M4 GBB (Blk)](http://www.sixmm.com/cdn/shop/products/ksc-m4-001-02.jpg?v=1611560605&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel Set for Marui M4A1 MWS GBB](http://www.sixmm.com/cdn/shop/products/marui-m4-008-01.jpg?v=1611738014&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel Set for Marui M4A1 MWS GBB](http://www.sixmm.com/cdn/shop/products/marui-m4-008-02.jpg?v=1611738014&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel Set[For Tokyo Marui M4 MWS GBB]](http://www.sixmm.com/cdn/shop/files/marui-m4-007-02.webp?v=1711282597&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel Set[For Tokyo Marui M4 MWS GBB]](http://www.sixmm.com/cdn/shop/files/marui-m4-007-03.webp?v=1711282597&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel for VFC HK416 GBB [BLK]](http://www.sixmm.com/cdn/shop/products/3_ebb4704f-6566-4592-b210-dd61dccf69c9.jpg?v=1611915515&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel for VFC HK416 GBB [BLK]](http://www.sixmm.com/cdn/shop/products/1_d4893c1a-6efe-4f39-983f-b0342ff66dd0.jpg?v=1611915515&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel for WE HK416/888 GBB (BLK)](http://www.sixmm.com/cdn/shop/products/ZP-WE-HK416-002-2.jpg?v=1611966507&width=950)
![[Z-Parts] 10.5 inch Steel Outer Barrel for WE HK416/888 GBB (BLK)](http://www.sixmm.com/cdn/shop/products/ZP-WE-HK416-002-3.jpg?v=1611966507&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 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] 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 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 Aluminium Outer Barrel[For Systema PTW M4][Type 4]](http://www.sixmm.com/cdn/shop/products/10999__Z-Parts__10.5inch_Aluminium_Outer_Barrel_For_Systema_PTW_M4_Type_4_1.jpg?v=1609402560&width=950)
![[Z-Parts] 10.5inch Aluminium Outer Barrel[For Systema PTW M4][Type 4]](http://www.sixmm.com/cdn/shop/products/10999__5BZ-Parts_5D_10.5inch_Aluminium_Outer_Barrel_5BFor_Systema_PTW_M4_5D_5BType_4_5D_1.jpg?v=1609402558&width=950)
![[Z-Parts] 10.5inch Outer Barrel Set for Marui GBB](http://www.sixmm.com/cdn/shop/products/marui-m4-008-01_38f30011-a56c-45a5-bd67-aba7a9f85f81.jpg?v=1611806280&width=950)
![[Z-Parts] 10.5inch Outer Barrel Set for Marui GBB](http://www.sixmm.com/cdn/shop/products/marui-m4-008-02_dd3bbf48-048d-44b3-99a7-f0463a3ebfd3.jpg?v=1611806280&width=950)
![[Z-Parts] 11.5 inch Steel Dimpled Outer Barrel for VIPER SR16 GBB](http://www.sixmm.com/cdn/shop/products/viper-sr16-001-01.jpg?v=1611916544&width=950)
![[Z-Parts] 11.5 inch Steel Dimpled Outer Barrel for VIPER SR16 GBB](http://www.sixmm.com/cdn/shop/products/viper-sr16-001-0a.jpg?v=1611916544&width=950)
![[Z-Parts] 11.5inch DD GOV Outer Barrel [For GHK M4 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_11.5inchDDGOVOuterBarrel_ForGHKM4GBBSeries_BLK_3.webp?v=1673182032&width=950)
![[Z-Parts] 11.5inch DD GOV Outer Barrel [For GHK M4 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/products/Z-Parts_11.5inchDDGOVOuterBarrel_ForGHKM4GBBSeries_BLK_2.webp?v=1673182032&width=950)
