121 Products
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![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][COLD M4A1]](//www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_COLDM4A1MK18MOD1_1.jpg?v=1669277900&width=950)
![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][COLD M4A1]](//www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_COLDM4A1MK18MOD1_2.jpg?v=1669277899&width=950)
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![[WE-Tech] HK416 / 888 Airsoft GBB Upper Receiver[Part#22][BLK]](//www.sixmm.com/cdn/shop/products/WE-Tech_HK416888AirsoftGBBUpperReceiver_Part_22_BLK_1.jpg?v=1662017273&width=950)
![[WE-Tech] HK416 / 888 Airsoft GBB Upper Receiver[Part#22][BLK]](//www.sixmm.com/cdn/shop/products/WE-Tech_HK416888AirsoftGBBUpperReceiver_Part_22_BLK_3.jpg?v=1662017273&width=950)
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![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][BCM Marking]](//www.sixmm.com/cdn/shop/products/GM0460-05-1L_3b0afdea-b70e-4516-a848-00768949b3bd.jpg?v=1643968100&width=950)
![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][BCM Marking]](//www.sixmm.com/cdn/shop/products/GM0460-05-2L_16483483-0ddd-4a6a-b79e-488a61fa2585.jpg?v=1643968100&width=950)
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![[Guarder] Steel Takedown Pin[For WA M4 GBB Series]](//www.sixmm.com/cdn/shop/products/Guarder_SteelTakedownPin_ForWAM4GBBSeries.jpg?v=1663588894&width=950)
Guarder AA#10577-3A1C[Guarder] Steel Takedown Pin[For WA M4 GBB Series]
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![[Maddog] WS Wire Cutter Upper and Lower Receiver[WE-Tech M4 Open Bolt GBB]](//www.sixmm.com/cdn/shop/products/9640__Maddog__WS_Wire_Cutter_Upper_and_Lower_Receiver_WE-Tech_M4_Open_Bolt_GBB_1.jpg?v=1609993401&width=950)
![[Maddog] WS Wire Cutter Upper and Lower Receiver[WE-Tech M4 Open Bolt GBB]](//www.sixmm.com/cdn/shop/products/9640__Maddog__WS_Wire_Cutter_Upper_and_Lower_Receiver_WE-Tech_M4_Open_Bolt_GBB__1_1.jpg?v=1609993403&width=950)
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![[Advantage Airsoft] AR Grip Lower Receiver [For VFC MP5K GBB Series]](//www.sixmm.com/cdn/shop/files/1_1892f47a-0cb1-4851-a547-d7cbe63fa87f.jpg?v=1718594361&width=950)
![[Advantage Airsoft] AR Grip Lower Receiver [For VFC MP5K GBB Series]](//www.sixmm.com/cdn/shop/files/2_0237f398-ce7c-450f-ab0d-77ae2fac25dd.jpg?v=1718594361&width=950)
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![[CYMA] CGS Noveske N4 GBB Receiver NSR9 Rail Set [For Marui MWS Series][FDE]](//www.sixmm.com/cdn/shop/files/sv1_77738c80-e0bd-4901-a977-dc92a6f2ee7b.jpg?v=1714971864&width=950)
![[CYMA] CGS Noveske N4 GBB Receiver NSR9 Rail Set [For Marui MWS Series][FDE]](//www.sixmm.com/cdn/shop/files/tab.jpg?v=1714971864&width=950)
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![[Army Force] Complete Lower Receiver [For Well G55 MP5K GBB Series]](//www.sixmm.com/cdn/shop/files/Untitled-1_e9a214ff-e0cc-4672-8b54-4e66eb608b9f.jpg?v=1701157526&width=950)
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![[EMG] Angry Gun M4E1 Ultra Lightweight Receiver Set [For Tokyo Marui M4 MWS Series][NO TTI Marking]](//www.sixmm.com/cdn/shop/products/EMG_AngryGunTTIM4E1UltraLightweightReceiverSet_ForTokyoMaruiM4MWSSeries_NOTTIMarking.jpg?v=1678454741&width=950)
![[EMG] Angry Gun TTI M4E1 Ultra Lightweight Receiver Set [For Tokyo Marui M4 MWS Series]](//www.sixmm.com/cdn/shop/products/AG-TTIM4E1MWSUL-2L_1ca3fd65-4b2b-4d8a-8978-acf161dd2a45.jpg?v=1678454741&width=950)
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![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][GEI]](//www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_GEI_4.jpg?v=1669277159&width=950)
![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][GEI]](//www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_GEI.jpg?v=1669277159&width=950)
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![[Angry Gun] COLT M723 / M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK]](//www.sixmm.com/cdn/shop/products/AngryGun_COLTM723M733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_6.jpg?v=1635748845&width=950)
![[Angry Gun] COLT M723 / M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK]](//www.sixmm.com/cdn/shop/products/AngryGun_COLTM723M733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_1.jpg?v=1635748846&width=950)
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![[T8] RS Style Forward Assist [For Tokyo Marui MWS GBBR series]](//www.sixmm.com/cdn/shop/products/T8-RS-FA-2L.jpg?v=1630296438&width=950)
![[T8] RS Style Forward Assist [For Tokyo Marui MWS GBBR series]](//www.sixmm.com/cdn/shop/products/T8-RS-FA-3L.jpg?v=1630296441&width=950)
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![[VFC] M16A1 / M723 / XM177 GBB Upper Receiver [BLK]](//www.sixmm.com/cdn/shop/files/VG2HURV102-1L__19899.jpg?v=1773287545&width=950)
![[VFC] M16A1 / M723 / XM177 GBB Upper Receiver [BLK]](//www.sixmm.com/cdn/shop/files/VG2HURV102-2L__79161.jpg?v=1773287548&width=950)
VFC AA#23047-12C2B[VFC] M16A1 / M723 / XM177 GBB Upper Receiver [BLK]
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![[Crusader] Anti Rotation Links[For Umarex (VFC) M4 / HK416 GBB Series]](//www.sixmm.com/cdn/shop/files/Crusader_AntiRotationLinks_ForUmarex_VFC_M4HK416GBBSeries_2.jpg?v=1769298987&width=950)
![[Crusader] Anti Rotation Links[For Umarex (VFC) M4 / HK416 GBB Series]](//www.sixmm.com/cdn/shop/files/Crusader_AntiRotationLinks_ForUmarex_VFC_M4HK416GBBSeries_1.jpg?v=1769298987&width=950)
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![[Umarex] VFC MP5 GBB Lower Frame Grip[3 round Bust Ver.][For VFC MP5 / MP5 SD Series]](//www.sixmm.com/cdn/shop/files/Umarex_VFCMP5GBBLowerFrameGrip_3roundBustVer._ForVFCMP5MP5SDSeries_5.jpg?v=1736502345&width=950)
![[Umarex] VFC MP5 GBB Lower Frame Grip[3 round Bust Ver.][For VFC MP5 / MP5 SD Series]](//www.sixmm.com/cdn/shop/files/Umarex_VFCMP5GBBLowerFrameGrip_3roundBustVer._ForVFCMP5MP5SDSeries_1.jpg?v=1736502345&width=950)
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![[Revanchist] Airsoft Upgrade Recoil Set [For VFC / WE / GHK M4 GBBR Series]](//www.sixmm.com/cdn/shop/files/123_c6a199f0-7cea-494d-ae4a-8bb49f63a061.jpg?v=1718338061&width=950)
![[Revanchist] Airsoft Upgrade Recoil Set [For VFC / WE / GHK M4 GBBR Series]](//www.sixmm.com/cdn/shop/files/321_3be5a87e-f133-4f9a-a28d-852504a7c635.jpg?v=1718338061&width=950)
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![[Angry Gun] COLT M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK] [COLT Licensed]](//www.sixmm.com/cdn/shop/products/AngryGun_COLTM733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_COLTLicensed_1.jpg?v=1652338343&width=950)
![[Angry Gun] COLT M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK] [COLT Licensed]](//www.sixmm.com/cdn/shop/products/AngryGun_COLTM733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_COLTLicensed_7.jpg?v=1652338343&width=950)
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![[Angry Gun] Colt M16A1 CNC Upper & Lower Receiver[For Tokyo Marui M4 MWS GBB Series]](//www.sixmm.com/cdn/shop/products/AngryGun_ColtM16A1CNCUpper_LowerReceiver_ForTokyoMaruiM4MWSGBBSeries_2.jpg?v=1645188666&width=950)
![[Angry Gun] Colt M16A1 CNC Upper & Lower Receiver[For Tokyo Marui M4 MWS GBB Series]](//www.sixmm.com/cdn/shop/products/AngryGun_ColtM16A1CNCUpper_LowerReceiver_ForTokyoMaruiM4MWSGBBSeries_3.jpg?v=1645188666&width=950)
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![[Z-Parts] Aluminum HK416 Receiver Set For VFC HK416 GBB Rifle](//www.sixmm.com/cdn/shop/products/vfc-hk416-009-0a_b1e42442-5b51-481b-9128-9b806086b7fe.jpg?v=1611815073&width=950)
![[Z-Parts] Aluminum HK416 Receiver Set For VFC HK416 GBB Rifle](//www.sixmm.com/cdn/shop/products/vfc-hk416-009-0b_53878c4b-de29-4282-abaa-b7d94c4ef756.jpg?v=1611815073&width=950)
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![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][Blink Marking]](//www.sixmm.com/cdn/shop/products/GM0460-00-2L.jpg?v=1630395861&width=950)
![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][Blink Marking]](//www.sixmm.com/cdn/shop/products/GM0460-00-1L.jpg?v=1630395864&width=950)
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![[WE-Tech] SMALL RICE 7 SMG Marking Plates Set [BLK]](//www.sixmm.com/cdn/shop/products/WE-Tech_SMALLRICE7SMGMarkingPlatesSet_BLK.jpg?v=1657285133&width=950)
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![[Tokyo Marui] Brand New Original Replacement Complete M4 MWS GBB Receiver Set](//www.sixmm.com/cdn/shop/files/0835C91B-64E2-4922-8609-44E52D816695.jpg?v=1769729855&width=950)
![[Tokyo Marui] Brand New Original Replacement Complete M4 MWS GBB Receiver Set](//www.sixmm.com/cdn/shop/files/3E299A5A-D48A-47A8-B867-B391A34C6AAD.jpg?v=1769729855&width=950)
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![[VFC] Airsoft Metal Upper Receiver[For Umarex / VFC M4 GBB Series][BLK]](//www.sixmm.com/cdn/shop/files/VG20URV003-1L.jpg?v=1769298144&width=950)
![[VFC] Airsoft Metal Upper Receiver[For Umarex / VFC M4 GBB Series][BLK]](//www.sixmm.com/cdn/shop/files/VG20URV003-2L__49306.jpg?v=1769298248&width=950)
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![[VFC] Umarex HK416D gen. 2 Upper Receiver[For Umarex HK416D GBB Series][BLK]](//www.sixmm.com/cdn/shop/files/VG23URV011-1L.jpg?v=1738913693&width=950)
![[VFC] Umarex HK416D gen. 2 Upper Receiver[For Umarex HK416D GBB Series][BLK]](//www.sixmm.com/cdn/shop/files/VG23URV011-2L.jpg?v=1738913693&width=950)
![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][COLD M4A1]](http://www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_COLDM4A1MK18MOD1_1.jpg?v=1669277900&width=950)
![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][COLD M4A1]](http://www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_COLDM4A1MK18MOD1_2.jpg?v=1669277899&width=950)
![[WE-Tech] HK416 / 888 Airsoft GBB Upper Receiver[Part#22][BLK]](http://www.sixmm.com/cdn/shop/products/WE-Tech_HK416888AirsoftGBBUpperReceiver_Part_22_BLK_1.jpg?v=1662017273&width=950)
![[WE-Tech] HK416 / 888 Airsoft GBB Upper Receiver[Part#22][BLK]](http://www.sixmm.com/cdn/shop/products/WE-Tech_HK416888AirsoftGBBUpperReceiver_Part_22_BLK_3.jpg?v=1662017273&width=950)
![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][BCM Marking]](http://www.sixmm.com/cdn/shop/products/GM0460-05-1L_3b0afdea-b70e-4516-a848-00768949b3bd.jpg?v=1643968100&width=950)
![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][BCM Marking]](http://www.sixmm.com/cdn/shop/products/GM0460-05-2L_16483483-0ddd-4a6a-b79e-488a61fa2585.jpg?v=1643968100&width=950)
![[Guarder] Steel Takedown Pin[For WA M4 GBB Series]](http://www.sixmm.com/cdn/shop/products/Guarder_SteelTakedownPin_ForWAM4GBBSeries.jpg?v=1663588894&width=950)
![[Maddog] WS Wire Cutter Upper and Lower Receiver[WE-Tech M4 Open Bolt GBB]](http://www.sixmm.com/cdn/shop/products/9640__Maddog__WS_Wire_Cutter_Upper_and_Lower_Receiver_WE-Tech_M4_Open_Bolt_GBB_1.jpg?v=1609993401&width=950)
![[Maddog] WS Wire Cutter Upper and Lower Receiver[WE-Tech M4 Open Bolt GBB]](http://www.sixmm.com/cdn/shop/products/9640__Maddog__WS_Wire_Cutter_Upper_and_Lower_Receiver_WE-Tech_M4_Open_Bolt_GBB__1_1.jpg?v=1609993403&width=950)
![[Advantage Airsoft] AR Grip Lower Receiver [For VFC MP5K GBB Series]](http://www.sixmm.com/cdn/shop/files/1_1892f47a-0cb1-4851-a547-d7cbe63fa87f.jpg?v=1718594361&width=950)
![[Advantage Airsoft] AR Grip Lower Receiver [For VFC MP5K GBB Series]](http://www.sixmm.com/cdn/shop/files/2_0237f398-ce7c-450f-ab0d-77ae2fac25dd.jpg?v=1718594361&width=950)
![[CYMA] CGS Noveske N4 GBB Receiver NSR9 Rail Set [For Marui MWS Series][FDE]](http://www.sixmm.com/cdn/shop/files/sv1_77738c80-e0bd-4901-a977-dc92a6f2ee7b.jpg?v=1714971864&width=950)
![[CYMA] CGS Noveske N4 GBB Receiver NSR9 Rail Set [For Marui MWS Series][FDE]](http://www.sixmm.com/cdn/shop/files/tab.jpg?v=1714971864&width=950)
![[Army Force] Complete Lower Receiver [For Well G55 MP5K GBB Series]](http://www.sixmm.com/cdn/shop/files/Untitled-1_e9a214ff-e0cc-4672-8b54-4e66eb608b9f.jpg?v=1701157526&width=950)
![[EMG] Angry Gun M4E1 Ultra Lightweight Receiver Set [For Tokyo Marui M4 MWS Series][NO TTI Marking]](http://www.sixmm.com/cdn/shop/products/EMG_AngryGunTTIM4E1UltraLightweightReceiverSet_ForTokyoMaruiM4MWSSeries_NOTTIMarking.jpg?v=1678454741&width=950)
![[EMG] Angry Gun TTI M4E1 Ultra Lightweight Receiver Set [For Tokyo Marui M4 MWS Series]](http://www.sixmm.com/cdn/shop/products/AG-TTIM4E1MWSUL-2L_1ca3fd65-4b2b-4d8a-8978-acf161dd2a45.jpg?v=1678454741&width=950)
![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][GEI]](http://www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_GEI_4.jpg?v=1669277159&width=950)
![[MadDog] Complete Metal Airsoft Super Duty Receiver Set[For WA M4 GBB Series][GEI]](http://www.sixmm.com/cdn/shop/products/MadDog_CompleteMetalAirsoftSuperDutyReceiverSet_ForWAM4GBBSeries_GEI.jpg?v=1669277159&width=950)
![[Angry Gun] COLT M723 / M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK]](http://www.sixmm.com/cdn/shop/products/AngryGun_COLTM723M733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_6.jpg?v=1635748845&width=950)
![[Angry Gun] COLT M723 / M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK]](http://www.sixmm.com/cdn/shop/products/AngryGun_COLTM723M733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_1.jpg?v=1635748846&width=950)
![[T8] RS Style Forward Assist [For Tokyo Marui MWS GBBR series]](http://www.sixmm.com/cdn/shop/products/T8-RS-FA-2L.jpg?v=1630296438&width=950)
![[T8] RS Style Forward Assist [For Tokyo Marui MWS GBBR series]](http://www.sixmm.com/cdn/shop/products/T8-RS-FA-3L.jpg?v=1630296441&width=950)
![[VFC] M16A1 / M723 / XM177 GBB Upper Receiver [BLK]](http://www.sixmm.com/cdn/shop/files/VG2HURV102-1L__19899.jpg?v=1773287545&width=950)
![[VFC] M16A1 / M723 / XM177 GBB Upper Receiver [BLK]](http://www.sixmm.com/cdn/shop/files/VG2HURV102-2L__79161.jpg?v=1773287548&width=950)
![[Crusader] Anti Rotation Links[For Umarex (VFC) M4 / HK416 GBB Series]](http://www.sixmm.com/cdn/shop/files/Crusader_AntiRotationLinks_ForUmarex_VFC_M4HK416GBBSeries_2.jpg?v=1769298987&width=950)
![[Crusader] Anti Rotation Links[For Umarex (VFC) M4 / HK416 GBB Series]](http://www.sixmm.com/cdn/shop/files/Crusader_AntiRotationLinks_ForUmarex_VFC_M4HK416GBBSeries_1.jpg?v=1769298987&width=950)
![[Umarex] VFC MP5 GBB Lower Frame Grip[3 round Bust Ver.][For VFC MP5 / MP5 SD Series]](http://www.sixmm.com/cdn/shop/files/Umarex_VFCMP5GBBLowerFrameGrip_3roundBustVer._ForVFCMP5MP5SDSeries_5.jpg?v=1736502345&width=950)
![[Umarex] VFC MP5 GBB Lower Frame Grip[3 round Bust Ver.][For VFC MP5 / MP5 SD Series]](http://www.sixmm.com/cdn/shop/files/Umarex_VFCMP5GBBLowerFrameGrip_3roundBustVer._ForVFCMP5MP5SDSeries_1.jpg?v=1736502345&width=950)
![[Revanchist] Airsoft Upgrade Recoil Set [For VFC / WE / GHK M4 GBBR Series]](http://www.sixmm.com/cdn/shop/files/123_c6a199f0-7cea-494d-ae4a-8bb49f63a061.jpg?v=1718338061&width=950)
![[Revanchist] Airsoft Upgrade Recoil Set [For VFC / WE / GHK M4 GBBR Series]](http://www.sixmm.com/cdn/shop/files/321_3be5a87e-f133-4f9a-a28d-852504a7c635.jpg?v=1718338061&width=950)
![[Angry Gun] COLT M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK] [COLT Licensed]](http://www.sixmm.com/cdn/shop/products/AngryGun_COLTM733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_COLTLicensed_1.jpg?v=1652338343&width=950)
![[Angry Gun] COLT M733 CNC Receiver Set [For Tokyo Marui M4 MWS Series][BLK] [COLT Licensed]](http://www.sixmm.com/cdn/shop/products/AngryGun_COLTM733CNCReceiverSet_ForTokyoMaruiM4MWSSeries_BLK_COLTLicensed_7.jpg?v=1652338343&width=950)
![[Angry Gun] Colt M16A1 CNC Upper & Lower Receiver[For Tokyo Marui M4 MWS GBB Series]](http://www.sixmm.com/cdn/shop/products/AngryGun_ColtM16A1CNCUpper_LowerReceiver_ForTokyoMaruiM4MWSGBBSeries_2.jpg?v=1645188666&width=950)
![[Angry Gun] Colt M16A1 CNC Upper & Lower Receiver[For Tokyo Marui M4 MWS GBB Series]](http://www.sixmm.com/cdn/shop/products/AngryGun_ColtM16A1CNCUpper_LowerReceiver_ForTokyoMaruiM4MWSGBBSeries_3.jpg?v=1645188666&width=950)
![[Z-Parts] Aluminum HK416 Receiver Set For VFC HK416 GBB Rifle](http://www.sixmm.com/cdn/shop/products/vfc-hk416-009-0a_b1e42442-5b51-481b-9128-9b806086b7fe.jpg?v=1611815073&width=950)
![[Z-Parts] Aluminum HK416 Receiver Set For VFC HK416 GBB Rifle](http://www.sixmm.com/cdn/shop/products/vfc-hk416-009-0b_53878c4b-de29-4282-abaa-b7d94c4ef756.jpg?v=1611815073&width=950)
![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][Blink Marking]](http://www.sixmm.com/cdn/shop/products/GM0460-00-2L.jpg?v=1630395861&width=950)
![[Guns Modify] Aluminum CNC Receiver Set [For Tokyo Marui M4 MWS GBB][Blink Marking]](http://www.sixmm.com/cdn/shop/products/GM0460-00-1L.jpg?v=1630395864&width=950)
![[WE-Tech] SMALL RICE 7 SMG Marking Plates Set [BLK]](http://www.sixmm.com/cdn/shop/products/WE-Tech_SMALLRICE7SMGMarkingPlatesSet_BLK.jpg?v=1657285133&width=950)
![[Tokyo Marui] Brand New Original Replacement Complete M4 MWS GBB Receiver Set](http://www.sixmm.com/cdn/shop/files/0835C91B-64E2-4922-8609-44E52D816695.jpg?v=1769729855&width=950)
![[Tokyo Marui] Brand New Original Replacement Complete M4 MWS GBB Receiver Set](http://www.sixmm.com/cdn/shop/files/3E299A5A-D48A-47A8-B867-B391A34C6AAD.jpg?v=1769729855&width=950)
![[VFC] Airsoft Metal Upper Receiver[For Umarex / VFC M4 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/files/VG20URV003-1L.jpg?v=1769298144&width=950)
![[VFC] Airsoft Metal Upper Receiver[For Umarex / VFC M4 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/files/VG20URV003-2L__49306.jpg?v=1769298248&width=950)
![[VFC] Umarex HK416D gen. 2 Upper Receiver[For Umarex HK416D GBB Series][BLK]](http://www.sixmm.com/cdn/shop/files/VG23URV011-1L.jpg?v=1738913693&width=950)
![[VFC] Umarex HK416D gen. 2 Upper Receiver[For Umarex HK416D GBB Series][BLK]](http://www.sixmm.com/cdn/shop/files/VG23URV011-2L.jpg?v=1738913693&width=950)