Well, the board is either fixed, or it's going to run terribly. Cross your fingers and hope for the best. I'm at my technical limit right now.

Building a M-114 (or the M-13)

Post Reply
Message
Author
User avatar
Rapidrob
Global Moderator
Global Moderator
Posts: 654
Joined: Sat Jun 03, 2017 9:10 am
Age: 67
Location: New Mexico
United States of America

Building a M-114 (or the M-13)

#1 Post by Rapidrob » Fri Aug 31, 2018 9:50 am

A good friend of mine approached me to help him build a M-1 / M-14 hybrid rifle. The idea sounded doable and I said yes.
I pulled the barrel off of two of his M-1's and installed a military M-14 barrel. ( one barrel corroded do to improper cleaning) The threads are the same. However the barrel over times by 12 degrees. Remembering my several L1A1 builds I turned, on my lathe,a barrel "breeching" washer out of pure coper sheet. That did the trick. The .308 headspace gauges showed no problem so we fired the barreled action into my bullet trap after popping off several blanks. The full house loaded fired case would almost fully seat in a Wilson Match chamber tool!
We were both amazed at this.
He brought two stocks,M-1 and M14 to be cut down and made into one stock. A few minutes with my overhead saw did the trick. I milled out the M-1 stock forend to take the M-14 op-rod guide.( stocks were from ROTC and were beat up)
The M-1 Op-Rod was cut down and heated/straightened to be use with the M-14 op-rod guide. The guide will need to be bushed to take the smaller op-rod of the M-1. Straightening the op-rod was so easy to do its stupid.
He has to order a new piston "end" that can be brazed onto the op-rod end.
We were both pleasantly surprised how easy this project is to do. From start to just busy work left to do only took 7 hours.
He will meld the two stocks together with pegs and Acuglass.
After he gets the new piston end I'll true up the op-rod end and braze/weld it to the op-rod.
I will ask if I may take and post photos of the rifle. After all,it is his.
The rifle when done will be pretty cool. It will turn some heads to be sure. And,it is California compliant! HA!
For you OMG,two rifle destroyed, let me say this. The two rifles used were bought as Gunsmith Specials / parts guns. He had been collecting parts that were missing for the last three years as he waited to return to the USA from being deployed overseas.
So what you end up with is a:
M-1 Receiver
M-14 issue barrel
A M-1 stock shortened about 6" and a M-14 front end glued on.
The M-1 Op-Rod is straightened and shortened about 8"
The M-14 op-rod guide is shimmed /bushed to take the 1/2" op-rod
M-1 recoil spring cut down to M14 length
That is pretty much it.And by golly it works!
A cartridge guide spacer may need to be used,thats to be seen,and no big deal.
You can build one!
More to follow.
Tin Can Sailor
'Nam Vet
NRA Endowment Member
President New Mexico Military Surplus Rifle Pistol Shooters

shoot4fun
Member
Member
Posts: 64
Joined: Sat Jun 03, 2017 8:18 am
Age: 33
Location: Cornfields, Ohhhhhio
United States of America

Re: Building a M-114 (or the M-13)

#2 Post by shoot4fun » Fri Aug 31, 2018 5:18 pm

Rapidrob wrote:
Fri Aug 31, 2018 9:50 am
You can build one!
More to follow.
Nope, I can't! But I like to read about other's efforts and projects.

Love to see and hear more about it.

User avatar
Rapidrob
Global Moderator
Global Moderator
Posts: 654
Joined: Sat Jun 03, 2017 9:10 am
Age: 67
Location: New Mexico
United States of America

Re: Building a M-114 (or the M-13)

#3 Post by Rapidrob » Sat Sep 01, 2018 10:48 pm

Here is a photo he sent me. We will try to finish the rifle by the end of next Sunday.
Bryans M114.jpg
Tin Can Sailor
'Nam Vet
NRA Endowment Member
President New Mexico Military Surplus Rifle Pistol Shooters

User avatar
Rapidrob
Global Moderator
Global Moderator
Posts: 654
Joined: Sat Jun 03, 2017 9:10 am
Age: 67
Location: New Mexico
United States of America

Re: Building a M-114 (or the M-13)

#4 Post by Rapidrob » Tue Sep 04, 2018 10:38 am

He and I spent the Labor Day together finishing up his rifle. I turned a bushing for the modified M1 op-rod and a plug for the end of the op-rod that would be pushed by the gas piston. We went to a diff stock that matched the colors of the M14 forend a little better. The M1 op-rod spring guide had to be modified to take the much shorter spring. The recoil spring being used will need to be changed to a more open and stronger Wolff spring made for the so called "Tanker Garand"
This will allow better overall movement of the clip follower and clip latch.
The rifle was test fired and functions as it should. Once the new spring shows up and the glue dries on the forend he will have a very nice shooter.
20180903_103502.jpg
20180903_110526.jpg
20180903_141904.jpg
20180903_222829.jpg
Tin Can Sailor
'Nam Vet
NRA Endowment Member
President New Mexico Military Surplus Rifle Pistol Shooters

ammolab
Member
Member
Posts: 96
Joined: Sat Jun 03, 2017 9:34 pm
Location: New Mexico USA
United States of America

Re: Building a M-114 (or the M-13)

#5 Post by ammolab » Tue Sep 04, 2018 5:33 pm

Looks pretty darn good!

User avatar
Rapidrob
Global Moderator
Global Moderator
Posts: 654
Joined: Sat Jun 03, 2017 9:10 am
Age: 67
Location: New Mexico
United States of America

Re: Building a M-114 (or the M-13)

#6 Post by Rapidrob » Fri Sep 07, 2018 8:58 am

My friend has the forend glued on and is matching the wood colors with stain The new recoil spring should be in soon and fitted to the op-rod.
He will test fire the rifle tomorrow to see how well it shoots at distance.
Tin Can Sailor
'Nam Vet
NRA Endowment Member
President New Mexico Military Surplus Rifle Pistol Shooters

Polock
Member
Member
Posts: 62
Joined: Sat Jun 03, 2017 7:28 pm
Age: 72
Location: SE By-God Arizona
United States of America

Re: Building a M-114 (or the M-13)

#7 Post by Polock » Sat Sep 08, 2018 5:25 pm

What a neat looking rifle! That is thinking outside the box---I really enjoy seeing "mods" that retain a military appearance/flavor.
"I have never seen a situation so desperate that the arrival of a policeman did not make worse"
Brendan Behan, Irish poet

User avatar
Rapidrob
Global Moderator
Global Moderator
Posts: 654
Joined: Sat Jun 03, 2017 9:10 am
Age: 67
Location: New Mexico
United States of America

Re: Building a M-114 (or the M-13)

#8 Post by Rapidrob » Sat Sep 08, 2018 9:56 pm

We test fired the rifle today for accuracy at close range,200 yards. The rifle is every bit as accurate as a M-14. Keeping the M-80 ball rounds in the center of the man silhouette target took little effort. I'm hoping the rifle will shoot for him well at 500 and 800 meters.
Tin Can Sailor
'Nam Vet
NRA Endowment Member
President New Mexico Military Surplus Rifle Pistol Shooters

Post Reply

Return to “General Gunsmithing”

Who is online

Users browsing this forum: No registered users and 2 guests