DPM Mechanical Recoil Systems for the M&P 9mm

This is a discussion on DPM Mechanical Recoil Systems for the M&P 9mm within the MP Talk forums, part of the Smith & Wesson MP Forum category; Has anyone installed a DPM mechanical recoil system in their M & P 9mm pistol? If you have, can you please share your experience (i.e., ...


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Old November 25th, 2009, 10:58 PM   #1
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Has anyone installed a DPM mechanical recoil system in their M & P 9mm pistol? If you have, can you please share your experience (i.e., likes or dislikes) about the product or any other feedback?
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Old November 26th, 2009, 06:19 AM   #2
 
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Hi ,I am new to the forum.



Sorry for my bad english!



I have a M&P Pro and put in DPM recoil system for Glock 17(just for experiment). Pistol run normaly, but recoil is direffent - less vertical flip,more back hit and little close group by double tap and folow up shots!

The stock recoil spring and rod is SAME like Glock 17. They a INTERCHANGEBAL !!!!
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Old November 26th, 2009, 12:08 PM   #3
 
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Gentlemen: "New, improved, revolutionary or tactical" accessories primary purpose is to separate you from your money. Their actual functionality is generally questionable and there have been instances where the product actually damaged the weapons. I've never really understood the fascination people have with tinkering with the recoil systems of their pistols-of all brands.



Seriously, manufacturers spend a lot of time and money developing weapons systems so that they strike a good balance between performance and long life. As an example, the 1911 weapons system functioned just fine for decades with factory specified springs. Then the system started to see widespread use as a combat competition pistol (late 1970's) and hordes of folks crawled out of the woodwork to capitalize on the popularity with a vast assortment of widgets. Many of them not as good as what the pistol came out of the factory with, but they made money for those who peddled them.



Spending money on training and practice ammo is better than spending money on gadgets.
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Old November 26th, 2009, 01:36 PM   #4
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Quote:
Originally Posted by Argus' post='232035' date='Nov 26 2009, 03:19 PM
Hi ,I am new to the forum.



Sorry for my bad english!



I have a M&P Pro and put in DPM recoil system for Glock 17(just for experiment). Pistol run normaly, but recoil is direffent - less vertical flip,more back hit and little close group by double tap and folow up shots!

The stock recoil spring and rod is SAME like Glock 17. They a INTERCHANGEBAL !!!!


Thank you for your reply. How many rounds have you fired using the DPM system thus far?
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Old November 26th, 2009, 01:48 PM   #5
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Quote:
Originally Posted by wr moore' post='232052' date='Nov 26 2009, 09:08 PM
Gentlemen: "New, improved, revolutionary or tactical" accessories primary purpose is to separate you from your money. Their actual functionality is generally questionable and there have been instances where the product actually damaged the weapons. I've never really understood the fascination people have with tinkering with the recoil systems of their pistols-of all brands.



Seriously, manufacturers spend a lot of time and money developing weapons systems so that they strike a good balance between performance and long life. As an example, the 1911 weapons system functioned just fine for decades with factory specified springs. Then the system started to see widespread use as a combat competition pistol (late 1970's) and hordes of folks crawled out of the woodwork to capitalize on the popularity with a vast assortment of widgets. Many of them not as good as what the pistol came out of the factory with, but they made money for those who peddled them.



Spending money on training and practice ammo is better than spending money on gadgets.


Thank you for your reply. I just wanted to get some feedback on this recoil system. It was recommended by Jeff Quinn from GunBlast.com and also from some tactical law enforcement agencies. I contacted S & W and the person who answered my email didn't know anything about the DPM system but did say it may cause some ejector problems. The US dealer had also emailed me saying that they had sold the system throughout the US and haven't had any negative feedback. Obviously, I did get one and installed it in the pistol. I noticed the action on the slide is softer, but DPM also supplied a more rigid spring if I feel it necessary to change it. I'll fire some rounds at the range to see if there is a really big difference. Again, thanks for your reply.
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Old November 27th, 2009, 04:06 AM   #6
 
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[quote name='Hi5_0' date='Nov 26 2009, 10:36 PM' post='232058']

Thank you for your reply. How many rounds have you fired using the DPM system thus far?

[/quote





1500 round - without any type of malfunction. The DPM arrive with two main springs - white and welloy. I use the welloy spring=

The white is for .40 S&W caliber gun.



In my country - DPM sistems cost 80 USD !
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Old November 27th, 2009, 08:21 AM   #7
 
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Looking forward to a report back from you Hi5.



I for one support anything that gives you an advantage as long as it doesn't negatively effect reliability or act as a crutch. I've never heard of the system until this thread, but googled and found it mentioned on a few other forums. I only found one person who has bought it say that they didn't notice a difference. Several others say it's an improvement and a couple say it didn't fit and had to return it. I haven't heard anyone mention any problems with reliability, but there's not too much talk out there about it in general.
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Old November 27th, 2009, 09:38 AM   #8
 
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Quote:
Originally Posted by Argus' post='232099' date='Nov 27 2009, 08:06 AM
The DPM arrive with two main springs - white and welloy. I use the welloy spring=

The white is for .40 S&W caliber gun.
Does welloy mean yellow?
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Old November 27th, 2009, 10:16 AM   #9
 
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Quote:
Originally Posted by adfinder23' post='232114' date='Nov 27 2009, 12:21 PM
Looking forward to a report back from you Hi5.



I for one support anything that gives you an advantage as long as it doesn't negatively effect reliability or act as a crutch. I've never heard of the system until this thread, but googled and found it mentioned on a few other forums. I only found one person who has bought it say that they didn't notice a difference. Several others say it's an improvement and a couple say it didn't fit and had to return it. I haven't heard anyone mention any problems with reliability, but there's not too much talk out there about it in general.


I bought one several years ago and installed on my M&P 9mm. Since, I have run about 3,000 rounds through the pistol and I like the result. Less muzzle flip and more accuracy - my wrist is a little weak from an old football injury. I had one configured for a Sig P239 too - that one has shown little difference -- could be the shorter barrel?? Overall, I feel better with it installed and that is what counts, no?
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Old November 27th, 2009, 11:23 AM   #10
 
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Quote:
Originally Posted by SD26' post='232119' date='Nov 27 2009, 07:38 PM
Does welloy mean yellow?




Correct. I posted before - MY ENGLISH is BAD. I am from East European country!
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Old November 27th, 2009, 11:31 AM   #11
 
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Quote:
Originally Posted by Argus' post='232125' date='Nov 27 2009, 03:23 PM
Correct. I posted before - MY ENGLISH is BAD. I am from East European country!
You're doing fine.
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Old November 27th, 2009, 11:31 AM   #12
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Quote:
Originally Posted by Argus' post='232125' date='Nov 27 2009, 09:23 PM
Correct. I posted before - MY ENGLISH is BAD. I am from East European country!




Its okay, I understood you.
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Old November 27th, 2009, 11:52 AM   #13
 
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Quote:
Originally Posted by BuzzKill' post='232120' date='Nov 27 2009, 07:16 PM
I bought one several years ago and installed on my M&P 9mm. Since, I have run about 3,000 rounds through the pistol and I like the result. Less muzzle flip and more accuracy - my wrist is a little weak from an old football injury. I had one configured for a Sig P239 too - that one has shown little difference -- could be the shorter barrel?? Overall, I feel better with it installed and that is what counts, no?


Sounds great. I'm a little disappointed though that it didn't work for the P239, because if your short barrel theory is correct then its effect on an M&Pc may be similar.
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Old November 27th, 2009, 05:03 PM   #14
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Quote:
Originally Posted by adfinder23' post='232114' date='Nov 27 2009, 06:21 PM
Looking forward to a report back from you Hi5.



I for one support anything that gives you an advantage as long as it doesn't negatively effect reliability or act as a crutch. I've never heard of the system until this thread, but googled and found it mentioned on a few other forums. I only found one person who has bought it say that they didn't notice a difference. Several others say it's an improvement and a couple say it didn't fit and had to return it. I haven't heard anyone mention any problems with reliability, but there's not too much talk out there about it in general.


I went to the range today and shot about 150 rounds with the DPM recoil system with no ejection issues. First of all I did notice that the recoil was less with the system. I did fire 2oo rounds using the stock spring/recoil rod so I did get a feel on how both felt. As far as accuracy, I think I have to work on that more on my part; sight alignment, breath control, position, grip and concentration. In my opinion, I think the system works. I'll just have to get more use to the DPM system and fire about a few hundred more rounds and I'll pretty much have the accuracy part up to standard or better.
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Old December 2nd, 2009, 04:26 PM   #15
 
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Hmmmm, looks kind of interesting. Good info at GunBlast as someone mentioned.

Wonder why they don't have it for the M&P 45?

Hope people continue to post their experiences here !
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