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Upgrade your 1911 with the John Masen Mainspring Housing, featuring solid steel construction and vertical serrations for improved grip without snagging.

JOHN MASEN SS/AR GM MAINSPRING HOUSING

555101004

Attributes

Finish:
```
Stainless Steel
```
Model:
```
Commander
```
,
```
Government
```
Weapon type:
```
1911
```
Delivery weight: 0.054kg
Shipping height: 1mm
Shipping width: 76mm
Shipping length: 117mm

Item details

Made in USA
US export classification: 0A501.y.1

Specifications:
Finish: Stainless Steel
Make: 1911
Model: Government, Commander

0 0 1 GBP

Not available.

Product no.: 555101004

Mfr. No.: 4548AS

Notify on availability 41.9 GBP

0 0 1 GBP

Description Specification Customers reviews Accessories

JOHN MASEN SS/AR GM MAINSPRING HOUSING

Notify on availability

Description:

Upgrade your 1911 with precision and style.

The 1911 SERRATED MAINSPRING HOUSING by JOHN MASEN is a perfect choice for enthusiasts looking to enhance their firearm. This solid steel, OEM-style replacement housing features vertical serrations designed to improve grip without snagging your clothing.

Product Features:

Exact reproduction of the original factory mainspring housing
Finish-machined from a solid-steel casting
Available in Blued (BL) or Stainless Steel (SS)
Choose between Flat (FL) or Arched (AR) designs
Compatible with Govt./Commander (GM) and Officers ACP (OM)

This mainspring housing is excellent for restoring or building any 1911, ensuring that your firearm not only performs well but also looks great.

Attributes

Finish:
```
Stainless Steel
```
Model:
```
Commander
```
,
```
Government
```
Weapon type:
```
1911
```
Delivery weight: 0.054kg
Shipping height: 1mm
Shipping width: 76mm
Shipping length: 117mm

Item details

Made in USA
US export classification: 0A501.y.1

Customers reviews

Customer ratings (5)

1.6 / 5

Recommended with reservations

Poor fit at base. 16/05/2018

The Mainspring housing fit the frame of a new colt govt with a gap at the bottom due to the mainspring housing being ground undersized leaving the sharp edges of the frame exposed to catch the heal of the hand while loading.

Not recommended

Buyer Beware. 07/09/2016

Fit the frame of a Colt 1911 but the hole for the mainspring cap was undersized and it stuck a third of the way in. Would have to be drilled out to work. Pretty poor Q/C.

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