These used to be real common. They were/are thin plastic spacers under the butt plate, pistol grip cap, and between the (usually) black forend tip and the front end of rifle stocks. I hate them--always have. They were almost always part of replacement stocks for military rifles sold by stock makers like Reinhart Fajen and Bishop (the big two) back in the 50's and 60's when converting fine old milsurps to sporters was (maybe) a cheaper way to get a decent deer killer. I did it myself--makes me sick now to think about the pristine '03 Springfield and a nice Swedish Mauser carbine I bought for $45 each and took to a gunsmith for polishing, bluing, and bolt handle alteration--barreled actions, that is--the fine stocks were practically given away at gun shows. We all know better now, of course, and I have a couple of good rifles--recent acquisitions that received the sporterization treatment probably years ago but remain desirable, at least to me. One is a U.S. 1917 Enfield, which was given the full treatment--receiver "ears" removed, polishing & bluing, floor plate alteration, etc. It has a Williams target-type receiver sight and I have had a globe front aperture installed and have shot it with cast bullets in reduced course NRA high power matches with some modest success. The other is an '03A3 Springfield that thankfully has NOT had any drastic alterations other than being drilled and tapped for a one piece Buehler scope mount and the bolt handle altered. Both these guns are in sporter stocks with white line spacers. Easy enough to get rid of the butt plate and pistol grip spacers, but the forend tip spacer is another matter. I thought of cutting off the forend tip right at the spacer--I have a compound miter saw that makes a clean cut and the saw kerf would take out the spacer and very little wood, but the possibility--maybe probability of some kind of metal connector buried in the joint is worrisome. Maybe just hacksaw off the forend tip--cutting through the spacer, and then clean up the cut surfaces with a bench type disc or belt sander so the tip can be replaced. If anyone has done this or is a pretty good woodworker and has any other ideas I'd like to hear from you.