I just installed a DPM Multiple Spring Recoil Reduction System into my 1911.
My gun is a Magnum Research .45 ACP 1911 Government model.
The installation required that I replace my guns Recoil Rod with the DPM Recoil Rod; my guns Spring Plug with a combination assembly of DPM's Spring Plug Base with the appropriate Plug Spacer; along with replacing my guns Recoil Spring with DPM's recoil Spring.
For my gun, DPM recommended I use their S-3 (Hard) Recoil Spring, and their PS-2 Medium Plug Spacer & Spring Plug Base assembly for the 45 ACP.
I did this and it works.
I went to the range and used three of my 1911's with the same reloaded ammo of mine (Full Power) in each gun.
The 1st gun I shot was an RIA .45 ACP 1911 Government GI model, which has been accurized.
The 2nd gun to I shot was a Magnum Research Desert Eagle .45 ACP 1911 Commander (4.2"), which has been accurized and has a 2.2 lb. trigger.
The 3rd gun I shot was my Magnum Research .45 ACP 1911 Government, which has the DMS conversion installed.
All three of my guns use trigger shoes that triple the width of the "face" of the trigger.
At first, I didn't notice too much difference in recoil between the guns, but as I continued shooting, I realized the Gun with the DMS conversion had almost no "muzzle rise" after firing a round. As I shot a few more 5-round groups, I realized there really was a bit less "felt recoil" with my converted gun.
I found I was also shooting it more accurately, even though my Magnum Research Desert Eagle .45 ACP 1911 Commander (4.2") had been more accurate before I installed the DMS Recoil Reduction System.
The DMS recoil reduction system uses 3 springs to reduce the speed of the slide as it recoils back into the frame. The main recoil spring is similar to the original recoil spring and assembles in the same way. There are 2 other separate internal springs installed inside the guide rod.
About 1/3 of the way through the 1911's slides' recoil, the larger of the 2 springs inside the guide rod begins to add its compression to the continuing compression of the main recoil spring.
About 2/3's of the way through the 1911's slides' recoil. the smaller of the 2 springs inside the guide rod begins to add its compression to both the continuing compression of the larger internal spring in the guide and to the continuing compression of the main recoil spring.
This way the force working against the slide is increased in three steps as the slide nears full contact against the frame in its fully open state.
The result is that the slide hits the handguns frame with less force than using just one linear spring. Since less force hits the frame, the muzzle rise is much lower and the "felt recoil" is less.
The final result was an enormous reduction in muzzle rise and less felt recoil. This allowed me to keep my sight picture through the entire shot. The more I shot my gun with the DMS Recoil Reduction System, the less anticipation I felt about recoil and the longer I could maintain my sight picture when firing. The reduction in my anticipation of recoil allowed me to shoot more consistently. Basically, the gun didn't get more accurate; my shooting did.
This conversion cost me ~$125.00 and was easy to install. I still have the option to fine tune this system to my gun by changing the recoil spring rating and the size of my plug spacer.
I intend to keep this system the way it is for now and improve on my shooting skill. I intend to make the conversion to my other two 1911's in the future - once I get my car paid off this November. - LOL
I never intended to get this involved in shooting, but I just can't quit - it's too much fun!
My gun is a Magnum Research .45 ACP 1911 Government model.
The installation required that I replace my guns Recoil Rod with the DPM Recoil Rod; my guns Spring Plug with a combination assembly of DPM's Spring Plug Base with the appropriate Plug Spacer; along with replacing my guns Recoil Spring with DPM's recoil Spring.
For my gun, DPM recommended I use their S-3 (Hard) Recoil Spring, and their PS-2 Medium Plug Spacer & Spring Plug Base assembly for the 45 ACP.
I did this and it works.
I went to the range and used three of my 1911's with the same reloaded ammo of mine (Full Power) in each gun.
The 1st gun I shot was an RIA .45 ACP 1911 Government GI model, which has been accurized.
The 2nd gun to I shot was a Magnum Research Desert Eagle .45 ACP 1911 Commander (4.2"), which has been accurized and has a 2.2 lb. trigger.
The 3rd gun I shot was my Magnum Research .45 ACP 1911 Government, which has the DMS conversion installed.
All three of my guns use trigger shoes that triple the width of the "face" of the trigger.
At first, I didn't notice too much difference in recoil between the guns, but as I continued shooting, I realized the Gun with the DMS conversion had almost no "muzzle rise" after firing a round. As I shot a few more 5-round groups, I realized there really was a bit less "felt recoil" with my converted gun.
I found I was also shooting it more accurately, even though my Magnum Research Desert Eagle .45 ACP 1911 Commander (4.2") had been more accurate before I installed the DMS Recoil Reduction System.
The DMS recoil reduction system uses 3 springs to reduce the speed of the slide as it recoils back into the frame. The main recoil spring is similar to the original recoil spring and assembles in the same way. There are 2 other separate internal springs installed inside the guide rod.
About 1/3 of the way through the 1911's slides' recoil, the larger of the 2 springs inside the guide rod begins to add its compression to the continuing compression of the main recoil spring.
About 2/3's of the way through the 1911's slides' recoil. the smaller of the 2 springs inside the guide rod begins to add its compression to both the continuing compression of the larger internal spring in the guide and to the continuing compression of the main recoil spring.
This way the force working against the slide is increased in three steps as the slide nears full contact against the frame in its fully open state.
The result is that the slide hits the handguns frame with less force than using just one linear spring. Since less force hits the frame, the muzzle rise is much lower and the "felt recoil" is less.
The final result was an enormous reduction in muzzle rise and less felt recoil. This allowed me to keep my sight picture through the entire shot. The more I shot my gun with the DMS Recoil Reduction System, the less anticipation I felt about recoil and the longer I could maintain my sight picture when firing. The reduction in my anticipation of recoil allowed me to shoot more consistently. Basically, the gun didn't get more accurate; my shooting did.
This conversion cost me ~$125.00 and was easy to install. I still have the option to fine tune this system to my gun by changing the recoil spring rating and the size of my plug spacer.
I intend to keep this system the way it is for now and improve on my shooting skill. I intend to make the conversion to my other two 1911's in the future - once I get my car paid off this November. - LOL
I never intended to get this involved in shooting, but I just can't quit - it's too much fun!
