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1911-2011 5″ Bull Barrel Edward Rivera B.O.S.S. Special Edition

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*B.O.S.S: Black Oxide Stainless Steel its an innovative coating technology applied usually on the visible parts of the recoil system.

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SKU: 1000226
EAN: 5213007222268
MPN Code: MS-1911/A1-5-ER-SE

DPM Mechanical Recoil Reduction System for 1911-2011 5″ Bull Barrel BLACK OXIDE VERSION

The DPM Mechanical Recoil Reduction Rod is a direct replacement for the stock recoil rod and does not require any modification to the pistol.

This system works due to the multi spring intricate rod (3 springs) and controls the functionality of the pistol. The third spring which is contained within the rod controls the movement of the slide so it never rams on the frame.

The system includes 3 different in length spacers, a spring plug, a red pressure plate tool, a metallic cup screw tool and 3 different external springs. The long spacer offers a heavy buffer effect, moving to shorter spacers a lighter buffer effect is being noticed.

Washers differentiate only the buffer force (slide full open position) and the external springs differentiate only the slide closed position (slide on the battery).

Detailed instructions for installation also included. The external springs are different in length, the long spring is heavy and the short is light so the shooter can fine tune the pistol on the Opening and locking position (slide on the battery) according his/hers personal standards.

Short Spacer With: 
Slide on the battery (idle position) 
Slide full open position (approx.)
Short Spring
5.0 lbs
14.3 lbs
Medium Spring
5.51 lbs14.3 lbs 
Long Spring
6.39 lbs14.3 lbs 
Medium Spacer With:Slide on the battery (idle position) 
Slide full open position (approx.)
Short Spring 5.29 lbs18.7 lbs
Medium Spring 5.84 lbs 18.7 lbs
Long Spring 6.5 lbs 18.7 lbs
Long Spacer With: Slide on the battery (idle position) Slide full open position (approx.)
Short Spring 5.51 lbs21 lbs
Medium Spring 6.06 lbs 21 lbs
Long Spring 6.60 lbs 21 lbs

Overall Advantages

  • Faster follow up shots
  • Improved firing speed
  • Slide and Frame Protection
  • Elimination of jams
  • Significant recoil reduction
  • Better double-tap concentration
  • Better control and greater accuracy

Lifetime Warranty. 

Made in Greece – EU.

Related Documents
Barrel Length (inches)5
Barrel TypeBull Barrel

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