Springfield Armory M1A SOCOM 16 308 Rifle
Perhaps the most difficult part of the M1 Rifle to mass produce was the operating rod, or op rod. Its design was a consequence of John Garand's conviction that a successful military semiautomatic rifle needed the power of a full stroke, gas impingement operating system for reliable functioning under all combat and climatic conditions. At the same time he had to minimize the effect on aim of the gas system's reciprocation.
Thus, the original "gas trap" system of the first Garands up to Serial Number circa 50, was designed to ensure that the bullet had left the muzzle prior to any action parts moving; consequently, the original gas trap Garands are reputed to be the most accurate of all service grade non-accurized M1s. As this arrangement was found to be deficient in strength, particularly when the bayonet was attached, and to carbon up over time thus reducing its effectiveness, the "gas port" system familiar to all M1 enthusiasts was born.
With the gas port now some inches behind the muzzle the operating rod began to move before the bullet left the muzzle, but measurements on an M14 with an M1 gas system indicate the op rod moves only about. The comparable figure for the T44 M14 with gas cut-off and expansion system was. So we see the reason for the length of the M1's op rod. The reason for its curvaceous beauty was to bring it from near the muzzle around the barrel and up to the bolt, where it operates the action proper. The op rod is made in two parts, the tube and the handle.
They are then welded together to create the completed component. During WWII the right angle joint where the two pieces came together proved to be a stress riser; thus after the war op rods from rifles under rebuilds were given a stress relief milling cut the shape of a racetrack in that area. If it's there it's obvious when you're looking at the drawing number. When M1 production resumed in the '50's all the op rods from all three manufacturers were made with this stress relief cut from the start.
Uncut rods are not the best idea for shooting, but are necessary for collectors' restorations. If your shooter has an uncut rod, hang it on the wall or sell it to a collector and use a good cut rod.
Post WWII, all op rods were made with the stress relief radius "built in. I like to call it the "77" op rod, but as it is often found stamped "NM" it is widely known as the National Match op rod. It had a subtle change to the tube's curve to fit it somewhat more tightly around the barrel.
This design was originally intended for and used in the building of Type 2 National Match rifles at Springfield. When the supply of good op rods dried up, this design was used for general rebuilds in the '60's. Quite a few went to Korea and have come back again as parts and on rifles. You'll see them both with and without the "NM" marking, but the rods are identical nonetheless.
One of the most skilled trades at Springfield Armory and the other M1 manufacturers was "rod bending" to the standard guage. Those who did this job well were highly regarded for their abilities. For those of you who might have wondered, that "special jig" in the Navy Van at Camp Perry is the op rod gauge! It was not used to bend 'em, just to check 'em.
It was possibly the most incredible gauge ever made to gauge a part for a U. Service Rifle.
The cost to make such a thing is mind boggling. Such extravagence in gauging reached its zenith with the Garand in general, and this one in specific!
The Garand even had a gauge to measure serviceability of the op rod spring tension.
Sheesh, just put a new spring in her! Springfield Armory, the original of coursecould have bought tens of thousands of new springs for the cost of just one of these gauges, not to mention the time required to test each spring. It's a real wonder.Whether it's for a new build, upgrade or repair, we supply high quality parts and fast service at reasonable prices.
Vacation alert! I will be out of the office from October 3 to October Orders placed after 5pm on October 2 will begin shipping on Monday, October Covid19 and other more exciting news. The current social distancing rules, etc. The stocks are at a warehouse a few miles from my home where everything else happens. I've been limiting my trips to times per week during the lockdown in Colorado.
So it is averaging business days to ship stocks. Please, everyone stay safe. This too shall pass, but more slowly than we would like I have also started another business, either through an excess of optimism or a lack of common sense. It is a totally different line of business, you can see it at www. No real effect on TreelineM14 operations, other than an eventual warehouse consolidation. I try to ship within two business days, unless I'm out of town I post a notice on the website for vacations.
USGI stocks, because of the myriad combination options and grades are generally business days to ship. Parts kits and custom stocks may take several days longer. You generally won't get backordered here, unless I miscount inventory if inventory stock is zero, you can't order the part.
The M14E2 front rail, replica butt pad and new style butt pad are shipping now. I also have TreelineM14 chrome silicon operating springs and hammer springs in stock and shipping. I invite you to browse through our store and shop with confidence. Create an account with us if you like, or shop as a guest. Either way, your shopping cart will be active until you leave the store.
Welcome to TreelineM Covid19 and other more exciting news - The current social distancing rules, etc. Thank you for visiting. All rights reserved.Unless Otherwise Noted: The M14 parts we provide are. Made In the USA. Subscribe to Our Newsletter and Monthly Specials.
Additionally, Firearms sales are print and call only. You may place your order online, but select the print and call options for payment. We will contact you to coordinate the FFL and payment. The BAD-T4 is a five 5 functiondouble-ended wrench.
We are offering four 4 complete rifles, expertly built and tested in our custom shop with the added bonus of our Mod-Fib stock, ITR in the raw. This is a one time offer for Memorial Day No accessories as pictured above are included. Our custom shop offers a large selection of accessories for our shop customers, but not for retail sale. We offer discounted prices on the following accessories.
Seekins Rings 2. Spuhr Rings 3. Precision Match Grade Barrel Blanks with exceptional end to end bore to groove diameter. Our small lot barrels are being used by precision shooters throughout the US.
Barrel blanks can be ordered in any length and are trued and polished prior to Some of the highlights are below: 1. Bored raceway for "Zero For those who want the weight and balance of a standard weight M14, but appreciate the ability to engage targets We order Krieger barrels for the M14 unchambered and uncrowned.
We rough cut, finish ream, crown and set the barrel timing to your receiver all while the barrel is trued in the lathe to minimize runout and maximize potential accuracy. If you plan to use your M14 rifle in harsh, humid, or corrosive environment and want a high quality stock that will handle well, is relatively light weight and is tough as nails, look no farther than our modified USGI sythetic stock. There are Excellent condition and complete USGI trigger groups.
Excellent finish. Matching Winchester housing and hammer. Front sight not included. This part is refinished using our SBN salt bath nitriding process. This increases wear properties and corrosion resistance.
Original USGI op rods in excellent condition. USGI op rods are the standard by which all commercial op rods are measured. The Wolfe Modified Medium Weight Barrel has been out in the field for just over a year now and the results are conclusive.Government, Military, and Law Enforcement: Please contact SEI directly through official channels for pricing quotations and availability.
We will also honestly and objectively advise you on what best meets your mission requirements. Likewise, we are especially keen on user feed back and are always open to new ideas on product improvements and new product development — especially from the shooter perspective. SEI barrels are short chambered! SEI recommends that you send your rifle to us here for barrel installation — all our M14 barrels are short chambered, and require fitting to the receiver.
SEI will also parkerize your barrel for no extra charge. When you purchase online, please be sure to make this request in the comments box at the bottom of the online order form. NOTE: see note above about installation, headspacing, and heat treatment.
MK ammo. In order to compensate, sight that is sold on the SOCOM 16 is taller and wider, and the aperture is also wider, than the regular M14 version. Solid bar stock Fatigue-Proof steel with mil spec magnesium phosphate finish. Use of XF-7 Grease pn on the muzzle threads during installation is recommended. If you are using this with an 18 inch barrel: 18" barrels will shoot higher than 22" barrels. Springfield Armory uses a taller front sight like the Springfield Scout.
Please note: SEI parts, particularly those that are manufactured from solid bar stock, are produced in batches, so customers my experience some delays in availability. Now, machined from bar stock and case hardened. Limited civilian availability. A must for high stress or cold weather applications. Current design does not allow the bolt to close with an empty magazine inserted but it can be closed if the magazine follower is pressed down.
Made from c cutlery grade stainless steel and stress relieved. OD grooves are fully radiused on the bottom instead of square to enhance cleaning and carbon removal. Final finishing includes surface hard chrome plating to. When used with our M80HT gas cylinder, wear is kept to a minimum, and can withstand infrequent maintenance in the field. Note: this is work is performed only on a trigger assembly that is supplied by the customer.
Includes a trigger group parts kit including a safety springa connector lock, an ejector head, an extractor, and a shim kit. Upon receipt of a valid FFL, the customer will receive a Smith Enterprise receiver barreled with a Smith Enterprise barrel contour of their choiceand a stripped USGI bolt that has been properly headspaced to the barrel.
The barrel will be M80HT finished and stamped with a matching serial number to the receiver. We have been manufacturing M14 receivers since and are the leader in the M14 billet manufacturing arena. Machined to exacting USGI tolerances as per the original prints, Smith Receivers undergo a stringent heat-treating process that culminates in a proprietary cryogenic treatment process, allowing the receiver to have uniform molecular structure in the crystals of the material, resulting in superior strength and hardness.
The final stage of production is a mil-spec black parkerized finish. SEI barrels are not hard chromed in the bore! Installation cost will vary, due to relative difficulties associated with various commercially manufactured receivers.Login or Sign Up.
Logging in Remember me. Log in. Forgot password or user name? Early M14 op rod. Posts Latest Activity. Page of 2. Filtered by:. Previous 1 2 template Next. Early M14 op rodAM.
Operating Rods and Spring Guides
Early M14 operating rod without hole in piston tip. Tags: None. The bottom pic, is Winchester, SAK is Saco-Lowell, a late replacement parts contractor which parts are regarded as some of the best quality. Comment Post Cancel.
Were Springfield and Winchester the only manufacturers of the early piston without the hole in the center? Jersey Devil. Welcome to the Addiction! Originally posted by Jersey Devil View Post.
Thanks for the information, while on the early M14 parts subject, i have a photo of a operating rod spring guide, was this the first type used on service M14 rifles? It is easy to feel through the wrappers of both kind. I don't recall seeing earlier parts but I'm sure someone has some. I have never seen any old SA pieces in the wrap.
I hope this helps. Thanks for the information. Phil McGrath. Originally posted by m14brian View Post. That was also a M1 rifle operating rod made in one piece too. All rights reserved. Yes No. OK Cancel.Unused predictions will expire at kick-off of the first selected game. NEW: For bets placed on the day of the game, you'll earn predictions that will be carried over to the following week's Predictor.
When will the winner be announced. We will announce the winners on the Monday after the last selected match has ended. What happens if multiple players guess correctly. There will be no rollover. Who will announce what the correct minute was. TV feeds may contain delays or errors in the precise timings and therefore cannot be relied upon for accurate timings therefore event times (e.
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M1a Op Rod
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