I called the company to buy a few of the blocks (the sqiare block shown in the attached picture that goes on an AR15)

that takes place of the grip when using the SlideFire Solutions bumpfire stock. They said they do not produce any extras and make these "one for one". In other words, you get one with your purchase of a SlideFire stock but cannot buy extras.
My concern is that since these are plastic, the installation and removal to go from one rifle to the next will cause excessive wear and lead to failure of the part.
I would like to see someone with machine skills make one (does not have to be an exact duplicate to work) out of aluminum. This should be easy for someone with a little machinist skill. I personally would like to have three. Is there anyone who would be willing to make one, let me beta test it on three different weapons and post a report on how these perform? Please contact me at: esea2000 (at) yahoo.com
I believe there would be a fairly large market for these. They could even be made from high grade plastic to keep cost down. I would like to test both kinds.
Thanks

eseaton

I also like to have a few extra blocks for my other AR15s.

BE

I would be interested as well this is certainly a part that could wear. I switch weapons and lowers quiet often with mine. I worry about what will happen when the threads gone south.

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How many it holds? Enough ;)

I might be interested. I'm assuming the purpose of this part is just to hold in the detent springs??? Does the slide fire stock actually make contact with the block or is there a gap?

Note: I don't have a slide fire stock so bear with me.

Okay, I found some more detailed pictures and it looks like the block has extrusions that ride in a "track" on the stock itself (to prevent vertical movement of the pistol grip). Is that correct?

Also, I don't think that making the block out of Al would be a good idea because it would cause wear on the stock.

The "rails" basically just keep everything lined up. There is no tight fit. Is there anyone out there with machine skills that can cut one out of aluminum? I would love to beta test it. Whoever makes them could sell a bunch. I am in for three already,

eseaton

I may have a cheaper alternative. Instead of machining a new block I say just use the block that came with the unit and when the threads are worn down from frequent installs on various firearms, I would use a hela coil repair kit. That way you have the non marring plastic block with a steel thread insert. Just a suggestion to save funds for ammo.

The hole that attaches the block to the receiver is not threaded. The bolt passes through it into the receiver which is threaded.

eseaton

Ohh...guess I got lost in translation. No threads, no wear, no problem.

Ok good, that was my understanding of it. I still think that making one out of aluminum would not be a good idea and would be unnecessary. By having an aluminum block and a plastic stock, the block would be the hardest piece in the assembly. So, the point of failure would now be in the stock - the hardest piece to reproduce. If it was me, I would want the point of failure to be in the block because you could easily replace it as you are already intending to do. Is there a particular failure point that you would be concerned about with a plastic block (like cracking from over-tightening the bolt, etc.)?

Some other advantages to making it out of plastic would include a possibly cheaper cost and lower friction (depending on material choice). I could make the part but am somewhat apprehensive about the aluminum.

So, these are just some things to think about and I am completely open to discussion on it and understand that I could be missing something.

The slide fire comes with a lifetime warranty. I your block wears out or fails you, contact slide fire and they should send out a new block. My block started to crack (I believe it came defective from the company) and slide fire sent me a new block.

i think what these guys are after is extra blocks that could be left in place on several guns to minimize wear to the pistol grips mounting hole as it is plastic and the threads in the lower will be prone to stripping and wear after awhile leaving you with a lower you can no longer mount any grip to

Yep... Ballistic got it right..

PM me for my address. I will duplicate it in aluminum and another material that will keep wear down to nothing and last a very very long time.

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Buy cheap, pay twice.

Although it does sound like a great idea to have multiple handguard-blocks for various rifles, you might want to make sure that Slide Fire Solutions' patent application for their SS-AR15 device permits 3rd party manufacture and duplication of their parts.