This is the order link for a custom serial number for your 416 lower receiver. You can now match your factory upper serial if you choose.

• The lower will be engraved with the serial number you enter at checkout
• The lower will then be sent to anodizing (black or RAL) and selector markings color filled on return
• The lower will then be shipped to either your FFL or Drunk Irish Customs for factory markings as you have selected

*NOTE: Buy purchasing this, please understand that your lower will not ship immediately. It will be batched with the outgoing receivers which may take 4-6 weeks to ship to your FFL.

If your serial number has been used by a previous GRW customer, it will no longer be available

* * Lowers will no longer be shipping with color fill. While this may cause you great pain, it's so much better for us because we can focus on machining more. OEM calls for lacquer. 

Recommend Testors Gloss Red PN#1103 and Gloss White #1145. Dilute with MEK. Fill. White excess. Repeat as needed. MEK should be your thinner

We can’t accept returns on custom serial number orders, so please make sure you enter the correct serial number…because that’s what’s going on the receiver!