3 replies to this topic

[tagacali]

I do currently have STI 140mm & 170mm, Grams spring & follower and Speedshooters Joey Hardy Spacers. Will the 7mm Bolen base pad will work with the one I currently have? How many rounds will I get off from my 140mm and 170mm?
Thanks.

[al503]

You can use the 7mm bolen pads with the 140mm tubes. However, you might run into an issue with the spacer being too short. I believe the spacer is made to be used with a +1 (2.5mm to 4mm) basepad. To use with a longer basepad, you would have to get the 170mm spacer and cut it down to length.

With the 170mm tube, you're probably going to have to use a +1 basepad to keep the overall length of the mag with base pad attached shorter than 171.25mm limit. If the tube is untuned, you'll probably get 28-29 rounds in the 170.

[yoshidaex]

What Al said

Edited by yoshidaex, 17 April 2012 - 05:54 PM.

[Torogi]

I think the most you can use for the bolen pads are the 4mms. I have to check but what I have is the 4mm and it just barely makes the gauge. SVI tubes. that $35 EGW mag gauge really helps alot if you have one especially when trying out different base pads.