Need Help installing new free float AR forend!

[Sour Kraut]

I have a new forend for my 9mm SBR and it came with a proprietary barrel nut that needs to be indexed to the receiver. Even with the 4 shims supplied, no combination will allow me to index the nut using a torque range of 30-80 ft lbs.

Should I just add more shims until it indexes correctly at the proper torque range? Will additional shims create issues down the road? Not certain what to do next.

 

[Ibmikey]

What brand is the rail? Some shimmed units rely on the shims to index and not a torque value.

 

[Sour Kraut]

Seekins Precision

 

[TanklessPro]

Wish I could help,but I do not use hand guards that use shims for that reason. Someone will have an answer for you soon.

 

[dogmush]

For what Seekins ask for those, have you called them and asked what they think?

Something might be out of spec, or they might send you a couple more shims, at the least they might have some insight.

FWIW, No I wouldn't just keep shimming the nut out. It's not that big a deal in this application, but it's a general bad practice.

 

[Sour Kraut]

For what Seekins ask for those, have you called them and asked what they think?

Something might be out of spec, or they might send you a couple more shims, at the least they might have some insight.

FWIW, No I wouldn't just keep shimming the nut out. It's not that big a deal in this application, but it's a general bad practice.

Calling them tomorrow.....

Thanks for the insight on the shims!