German spec AR-15 bolt?

[clutch]

I was over on the e-sarco site and saw an offering for German spec ar15 bolts which indicated that one lug was removed.

Why?

Thanks,

Clutch

 

[ugaarguy]

The AR-15 / M16 design uses a 7 lug bolt, with the extractor slotted where an 8th lug would fit. I can't remember where I read it, but there has been some discussion that removing / not including the lug opposite the extractor actually equalizes the forces across the bolt and contributes to longer life.

 

[jakk280rem]

Read the same thing a couple years ago in a magazine article. It was concerning Armalites improved bolt design that simply shortened the 7th lug rather than removing it.