How much fitting is required for fitting within the lower handguard with these weights?  As there are more than a few manufacturers of handguards I am sure not all of their internal supports line up with the channels molded within this lead weight that and cutting it to balance the rifle as you want.





How heavy is your rifle?







 

I never had much luck with the cuff weights, always seem to move around under the handguards.

Switched to stick on mag wheel weights, placed between the ribs on the inside of the handguards, no problems.

My Service Rifles weigh about 13.5 lbs, with handguard weights and about 2/3 of the lead rear wedge weight installed.

Best Regards,
Dave

Had to use a round file to make grooves that lined up with Rock River handguards. Can't remember what weight I bought.

I usually just pour my own weights. Line the bottom handguard with several layers of tin foil, smooth into it with a few simple tools. Lay the handguard on a folded wet towel and pour from a lead pot around the free float tube while the bottom is attached to the rifle. Pop the handguard off soon as you are dome ant let cool, trim the end until it is balanced how you like. I like it a little front heavy and use an ingot that just fits inside the buttstock, wrapped in a rag.

I bought weights from RRA when I bought my NMA4.  The handguard weights fit perfect without adjustment.  The buttstock weight had to be trimmed a bit to get the door to close.  

They are solid and I haven't had any shifting so far.  I hadn't ever weighed the rifle, so I just went and stood on a scale.  When I picked up the rifle it added 17lbs!

That's a bit heavy.  I may be trimming weight in the near future, but it has worked well so far.

My RRA NM A4 has a cuff and full butt stock weight.  No fitting required.  They both had pieces of weather stripping foam that took up extra space to keep them from rattling around.