Blitzkrieg Castle Nut

Blitzkrieg Castle Nut

The Blitzkrieg Castle Nut is a Mil-Spec castle nut for any AR-15 and LR-308 with a carbine buffer tube installed. Made from steel and coated black.

The castle nut included will NOT work with rifle-style buffer tubes. A rifle buffer tube does not require a castle nut to be installed.

The Blitzkrieg Castle Nut, like all of our products, is proudly manufactured right here in the USA.

Kit includes:

  • Castle Nut

Product Specifications:

Material: Steel

Coating: Black

 

 

Gas Key: CNC Machined, Heat Treated, Nitride, Torqued and Staked to Mil-Spec, Nickel Boron Plated

Cam Pin: Swiss Machined, Heat Treated, Nitride

MPI Tested: Yes, Individually Tested

Product Specifications:

Bolt: 9310, Shot Peened, Heat Treated, Nitride

Carrier: SAE 8620, Heat Treated, Nitride, Full Auto

Extractor: Swiss Machined, Heat Treated, Precision Ground

Firing Pin: Swiss Machined, Heat Treated, Precision Ground

Gas Key: CNC Machined, Heat Treated, Nitride, Torqued and Staked to Mil-Spec, Nickel Boron Plated

Cam Pin: Swiss Machined, Heat Treated, Nitride

MPI Tested: Yes, Individually Tested