My order has been in transit for over 80 days and when I tried to contact them via WhatsApp, they never replied. They only replied after I submitted a complaint through PayPal. Then they only provided the tracking information (that I already had) and said to be patient. No other assistance offered or provided. I had to make enquiries from both Chinese and NZ postal offices. Unfortunately, they only point at each other or say to contact the shipper. I am currently trying to get my money back from PayPal, but this appears to be a slow and difficult process. So due to my experience, I can't recommend 6mm. Use at your own risk.
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![[Dr. Black] 5.1 Aluminum Fiber Rear Sight [GY]](http://www.sixmm.com/cdn/shop/files/2_3569f89d-040d-40c5-b9c9-fdddbc2d17aa.jpg?v=1715136093&width=950)
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![[Dr. Black] 5.1 Aluminum Fiber Rear Sight [GLD]](http://www.sixmm.com/cdn/shop/files/2_e38a6c96-2e32-4da5-8754-9038d9f86b04.jpg?v=1715134769&width=950)
![[Dr. Black] 5.1 Aluminum Fiber Rear Sight [GLD]](http://www.sixmm.com/cdn/shop/files/1_412525ec-9e62-412e-bc0e-07b1b1f32aaa.jpg?v=1715134769&width=950)
![[Dr. Black] 5.1 Aluminum Fiber Rear Sight [BLU]](http://www.sixmm.com/cdn/shop/files/2_50feb180-2e0d-45b8-ae5f-10a11bcfdf1f.jpg?v=1715134569&width=950)
![[Dr. Black] 5.1 Aluminum Fiber Rear Sight [BLU]](http://www.sixmm.com/cdn/shop/files/1_ccdd619a-43a2-4ce6-9077-9e52c59ffa36.jpg?v=1715134569&width=950)
![[Guns Modify] W Style Steel CNC Fiber Optic Sight Set for Umarex [VFC] Glock 17 Gen 3 / Gen 4 GBB Series](http://www.sixmm.com/cdn/shop/products/GM0400_3.jpg?v=1676694976&width=950)
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![[Guns Modify] 2.0mm Fiber Optic for Gun Sight [Green] 50mm*2](http://www.sixmm.com/cdn/shop/products/GM0182.jpg?v=1676709107&width=950)
![[Guns Modify] 1.0mm Fiber Optic for Gun Sight [Yellow] 50mm*2](http://www.sixmm.com/cdn/shop/products/GM0183_2_091803c5-74ef-43dc-8abf-2c4daa6bde11.jpg?v=1676772401&width=950)
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![[Army Force] Fiber Optic Iron Sight[For Tokyo Marui 1911 GBB Series][BLK]](http://www.sixmm.com/cdn/shop/products/ArmyForce_FiberOpticIronSight_ForTokyoMarui1911GBBSeries_BLK.jpg?v=1656338190&width=950)
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