How It's Made: Smith & Wesson M&P Handguns

by
posted on March 26, 2020
One of the main handgun lines produced by Smith & Wesson is its M&P striker-fired semi-automatic pistol series. The M&P brand of Smith & Wesson handguns started back in 1899 with the release of the Smith & Wesson .38 special cartridge and the Military & Police revolver, which became the Model 10 still in production.

The M&P brand was reborn in 2005 with the release of Smith & Wesson's M&P series of polymer-framed pistols, which grew to include rifles the following year. Since then, the M&P brand of pistols has grown into several families of polymer-frame pistols, like the M&P Shield, M&P Bodyguard and M&P 2.0 families.
Outside facade of the Smith & Wesson Precision Components building in Massachusetts.

Small parts and frames for the M&P series are fabricated by Smith & Wesson Precision Components, which is a brand within Smith & Wesson. There, many parts for several different lines are made, including the Smith & Wesson, Performance Center, Thompson Center Arms and the M&P lines.

All the various caliber and frame sizes are manufactured under one roof. The manufacture one of the polymer frames begins with the processing of engineered resin pellets which are processed through a drying unit, to remove all moisture, before going into the press. It is then fed into an injection barrel for the press and heated into a molten state.
Inside of the mold used to form Smith & Wesson M&P pistol frames.

Liquified resin is then forced into the cavity of the mold through pressure to fill the voids. One of the components fused into the frame during the molding process is the stainless-steel chassis system, which acts as a skeleton for the polymer frame. This feature is longer in the M&P 2.0 to ensure that the dust-cover rail segment does not wobble and remains rigid. The chassis struts also hold the serial number for each pistol, which are logged after the chassis struts are over-molded into the frame.

The material is then allowed to cool before being removed from the mold. Each raw, molded frame is then checked to make sure that they match specified internal and external specifications. After the frames have passed initial checks, some additional assembly steps take place at the press including the addition of a backstop and a frame tool. Additional testing is also conducted on fit to ensure that quality requirements of the frames are met. The parts are then boxed and shipped to the main Smith & Wesson plant at Springfield, Massachusetts for final assembly and tests.
A Smith & Wesson plant employee points out the contours of a newly molded M&P pistol frame.

At the main plant, the barrels and slides for the M&P series are machined. The frames are unboxed and then paired with a slide and barrel. They are then built up with other parts into complete firearms, with more quality checks being made along the way. The final test for the new M&P pistols is a test-fire. When they pass, they are finally packaged and made ready for sale to the customer.

To see how all of this works together, check out our American Rifleman TV episode above.


Latest

Forehand & Wadsworth British Bull-Dog right-side view nickel-plated gun revolver with black grip
Forehand & Wadsworth British Bull-Dog right-side view nickel-plated gun revolver with black grip

I Have This Old Gun: Forehand & Wadsworth British Bull-Dog

Many eagle-eyed NRA members viewing the 1993 Western “Tombstone” no doubt recognized the Forehand & Wadsworth British Bull-Dog so deftly welded by actress Joanna Pacula, portraying Big Nose Kate, during a contemptuous card game between Doc Holliday and Ed Bailey.

Medal Of Honor Marine Receives Henry Repeating Arms Tribute

Henry Repeating Arms presented a Spirit of the Corps 250th Anniversary Tribute Edition rifle to Maj. Gen. Livingston for going above and beyond the call of duty on May 2, 1968, during the Battle of Dai Do in Vietnam.

Preview: Duramag 1911 DS Magazines

Duramag’s 1911 DS Magazines are compatible with numerous 9 mm Luger-chambered 2011-style handguns on the market.

Colt Monitor: The FBI’s “Fighting Rifle”

In the years between the World Wars, a rare variation of the Browning Automatic Rifle proved its reputation as an effective, devastating automatic rifle for combat between the country’s lawmen and its outlaws.

The Armed Citizen® May 19, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Report Shows Inventory, Prices Have Dropped At Firearm Retailers

Nearly all gun and related gear inventories at retailers dropped in the last 12 months. So have most prices paid at the counter, according to the year-over-year comparison detailed in the latest RetailBI report.

Interests



Get the best of American Rifleman delivered to your inbox.