Announcing the new, patent pending, RevUp ActionTM hammer

Will the included springs be too light to work in a rimfire revolver like my 617?

Maybe, maybe not. Every gun is an entity unto itself. However, the mainspring to hammer linkage makes it easier for the rebound slide to return forward, as there is not as much downward pressure on it from the hammer as in the normal setup.

The rimfires still need a heavy mainspring setting (hard hit), so depending on your particular gun and ammo, the 12 or 13 lb. spring may still work. There are many variations in any gun/ammo mix, so blanket statements often don't work very well.
 
I look forward to a few range reports before I make any decisions on this interesting product.


We're working on that. It will have to be someone else, more objective than me.

I only want people respected in the industry to do reports of what they really think. I can tell you that after shooting matches with this for about a year, I'm not worried about any bad reviews.
 
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I see what looks like two set screws in the pictures.

In reading the downloaded instruction sheet I don't see why there's two? Nothing is mentioned about using one or the other.

You show it comes supplied with a tube of Loctite. No doubt it's to secure the set screw once you're made your final adjustment but again that's not in the instructions.

Also, is that a wicking Loctite that you add once the screw is installed rather than one that you add before you install the part? Shouldn't this be specified?

Can you explain?

Not trying to be critical but I think the finalized instructions need to be a tad more detailed for the gun owner wanting to do the installation job himself so they won't have to make any assumptions & you end up with a happy customer.

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Thanks for your observations, guys. The instructions that come with the kit will be much more detailed. This is just an introduction to the product, so we didn't want to write a book.

The 2 setscrews are: short for round butt grip frame, long for square butt grip frame. The full directions will tell you to clean the threaded hole and setscrew with acetone, brake parts cleaner, etc.. Wait for solvent to evaporate. Apply Loctite to both internal and external threads and screw in the setscrew. Clean off excess with a cloth or Q-tip. This is low strength Loctite that allows you to make adjustments at any time after it cures, but will hold the screw where you set it. No heat is required to move the screw. You may want to make a small access hole in the grip to allow for easy adjustments on the range.

There will be other instructions as well. For instance, the top hole in the hammer is used to hook a trigger pull gage in for measuring mainspring tension. Once you get the strain screw where you want it, you can record that number for future reference. If you have to take out the mainspring to work on the gun, or replace it, you can dial the mainspring back to where it was before, without shooting a bunch of ammo to find that same spot.

There will be a card with the kit to record when the parts were installed, what gun they are in, (mainly to keep the original parts and gun together), a baggie to put the original parts in, and other information you will want to keep for later. You can see what this looks like by going to the home page, click on support and FAQ, and click on record card.

This is a system, not just a part. While it may seem a bit complex to begin with, once you see how it works, it's all very simple. It takes a lot of explaining because everything is new and different. Once you do one gun, it becomes clear.
 
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Hmmm, I'm being critical, but that hammer looks "trashy" and is not worthy of being on an S&W. Sorry.:(:eek: My problem is I'm "old school".:)
Good luck in your endeavors though.
 
I am “old school” also but on a DAO, do not see the need for a hammer spur, but I would not mind having the option.

Are the holes necessary? Do they significantly speed the hammer fall?

Kevin
 
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The holes are multi function. Together as a group they lighten the hammer to speed the hammer fall. The pivot hole is a given, the 2 holes above it are tooling holes for manufacturing, and the hole at the top is for a trigger pull gage. The hole placements were carefully calculated to not weaken the hammer in any way.

A lighter hammer will set off primers with a lighter mainspring setting. It doesn't take as much spring pressure to get a lighter hammer up to speed in the short space available. There are limits to how light you can go and still work, because the lighter the hammer, the more speed is required. The mainspring can only provide so much force (and speed), even dialed all the way up.

Everything is a series of tradeoffs and a balancing act. To get more of one thing, you have to have less of another. Finding the optimal balance is the key to making it work. Making a "normal" looking hammer is possible, at the cost of heavier spring settings. When you raise the mainspring tension, often you have to have a heavier rebound spring, too. These hammers are mainly for the competition and target shooting crowd who are more interested in performance than looks.

Once everything is rolling, we anticipate adding hammers with spur and SA notch to the mix. Bringing a new product to market is very expensive, and we can't do everything at once. You have to start somewhere. This is the market we feel (hope) will give us the best beginning.
 
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I put a pre-order in the other day. We need some other folk to step up as well! How often do you get to be on the leading edge of revolver tech?
 
Update!

Hey guys,

I wanted to share the e-mail update that just went out to people who have signed up on the website.

-------------------------------------------------

Pre-orders are still open!

We have some good news! We are nearing the time when we can begin shipping N-frame hammer orders, with K- and L-frame hammers to follow soon after. We have re-evaluated and determined that we only need 100 orders to be able to make the first run.

If you have already pre-ordered, please accept our sincere thanks

Once the first 100 items are claimed, prices will be going up, so please pass the word so that your friends can get in on the current pricing.

Welcome to RevUp Action™! - RevUp Action
 
I wanted to share the e-mail update we just sent out to our newsletter subscribers.

Pre-orders are still open!

We have some news. We have unfortunately run into a snag on some off-the-shelf components due to supply chain issues. We are diligently working on this problem and hope to have it resolved in the near future. We can't promise how long it will take, but we will keep you updated. Once this problem is resolved, we will begin shipping N-frame hammers.

We are also working on finalizing K- and L-frame hammers, so we hope those will follow shortly after the N-frame kits start to ship.

There are still 60 pre-orders left open. Once these have all been claimed, prices will be going up, so please pass the word so that your friends can get in on the current pricing.

If you have already pre-ordered, please accept our sincere thanks! We know you've been waiting anxiously for your kits, and we're excited that we will soon be able to fulfill your orders.
 
Below is the text of the newsletter we just sent out.

Pre-orders are still open!

We have some great news!

While we still have a problem with some off-the-shelf components due to supply chain issues, we have enough of those components to ship the first 8 N-frame hammers!

We have also gotten permission to manufacture the out-of-stock parts, ourselves, so we are working on tooling up to do that, but it will take a bit more time before we're ready to ship any further orders. Once we have manufactured enough of the out-of-stock off-the-shelf components that we are missing, we will ship the rest of the N-frame hammers.

We are also working on finalizing K- and L-frame hammers, so we hope those will follow shortly after the N-frame kits ship.

There are still some pre-orders left open. Once these have all been claimed, prices will be going up, so please pass the word so that your friends can get in on the current pricing.

If you have already pre-ordered, please accept our sincere thanks! We know you've been waiting anxiously for your kits, and we're excited that we will soon be able to fulfill your orders. If you have ordered more than once, your orders will be fulfilled in the order they were received, so you may receive multiple shipments.
 
Apparently, I was one of the first to order, as I received my new hammer yesterday. I was lucky enough to visit Protocol Design late last summer and saw the prototype. I wanted one then, so ordered as soon as they were advertised. This is a high quality piece along with the detailed instructions.

I was curious and in a little hurry to see how it would function so gave it a quick install this morning. I used my "target" gun, a 6 inch 627-2. The double action trigger gauged at 11 lb, 1.5 oz with the electronic Lyman trigger gauge. I installed the new hammer and a 12 lb trigger rebound spring. The kit comes with an 11, 12 and 13 pound springs, so I went with the middle weight. I reinstalled the mainspring with the original mainspring strain screw, just to see how much the difference might be.
With the new hammer and spring the double action weight was now 7 lb 15 oz. a reduction of just over 3 pounds. Better yet, the action was better than before. As I shoot DA only on this gun, and most others, I can't wait to try this one out. I did not yet install the firing pin and spring, because I already have an aftermarket firing pin in this gun.
I normally shoot this gun in a competition we have that requires a single action pull of 2.5 pounds, and before the competition, I found it was a little shy, so I installed a full power trigger return spring, which put the DA at the 11 lb, 1.5 oz weight. and the single action at almost 4 pounds.
I also have another 627-2 6 inch back up gun and I am going to order another hammer for it just as soon as I post this message.

If you shoot a lot of double action revolver, you are going to love this hammer!!!

edited to add: The real nice thing about the new hammer is that it has a smooth consistent DA stroke from beginning to let off! It feels like the same weight, no stacking, no hard initial take up, the same beginning to end.
 
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