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It's an M1. Have not shot it yet. I might have been expecting a much lighter pull than it has. I talked to Damon @ Tommy Gunner and he confirmed the correct installation of the spring kit. Offered a full refund if I wasn't satisfied. Top notch guy in my book! I will take it to the range and see how it runs. It might just need to settle in. Now I need to fill out the paperwork and get a short barrel for it! PK, are you still planning on manufacturing your own barrels? http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/smile.gif
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Yes. No details to offer at this point other than prototypes are tuning out very nicely, but defiantly yes.
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That is great news PK! I would like to have you do the full GI ( short barrel, reblue/coat, selector) service to my SA. What is the average turnaround for a Kahr gun? Do you do the short barrel engraving and where do you engrave it? Thanks.
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I received my EZ Pull springs and it took me a long time to get them in. They would buckle in the middle while pushing the guide in. Finally after about 5 minutes they went in while pushing down the middle of the springs. Mine is a little better than the original springs but not that much. It slams home faster that the originals. I was at the gun show and saw an original M1 laying on the table and asked the owner if I could hold it. He said yes and I picked it up. I was amazed at how light the spring was. http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/ohmy.gif I told him that my 1927 A1 had to be cocked with two hands and his was like nothing to cock. He said that he had a 1927 A1 and it was like that also. Why can't someone make a spring like the original and do away with the two little springs. Or is it part of the (keep it semi auto mentallity)? http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/ph34r.gif Maybe it's that great big knob that has to have more spring pressure. They are fun to shoot and accurate. http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/tongue.gif ..TheTodd
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QUOTE
"Why can't someone make a spring like the original and do away with the two little springs. Or is it part of the (keep it semi auto mentallity)?  Maybe it's that great big knob that has to have more spring pressure. They are fun to shoot and accurate.  ..TheTodd
"

 

How many times has this question been asked on this site and how many times has it been answered?

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QUOTE
How many times has this question been asked on this site and how many times has it been answered?

 

Apparently not enough for some.... http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/tongue.gif

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I installed a set in my 27 and there was a noticeable difference in pull. I have the smaller reshaped bolt handle. Not the supplied cheese grater style.

 

It is my personal opinion that there may be a lesser degree of breakage due to the smaller mass of the re-shaped handle.

 

My first thought when you wrote that no change was noticed, that perhaps inadvertently you put the original springs back in front of the new buffer.

 

My 27 works great with the Ez Pull springs and is definitely more fun to shoot.

The only other difference I noticed was a little flame at the ejection port. Most likely due to the smaller amount of force needed to drive the bolt rearward.

 

 

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I think that the single biggest problem with the 27A1 setup is the fact that it fires from a closed bolt. Because of this, it must have a spring to drive the firing pin when the trigger is pulled.

 

I use the Janowski spring kit in my full-auto 27A1. The pull (spring pressure) is nearly identical to a 28 or a full auto M1. The reason it is true is because it has been converted to an open bolt (legit, on ATF form 4) and has it has no spring for the firing pin. The firing pin is a fixed firing pin on the bolt face.

 

Unfortunantly, the closed bolt 27A1 must retain the firing pin spring, and it must have enough tension to operate the gun.

 

The Janowski spring kits are durable; I shoot mine on full-auto and after almost 4,000 rounds show no wear that I can see.

 

The 27A1 is a good example of try to reinvent the wheel. The Thompson in it's orginal full-auto form worked like charm. Now that the gun cannot operate from an open bolt, it has made it more difficult to operate and less reliable. http://www.machinegunbooks.com/forums/invboard1_1_2/upload/html/emoticons/sad.gif

 

Norm

 

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