Windham Weaponry’s attention to detail and the care that goes into each rifle pays off at the range in accuracy and dependability. It also pays off in the pocketbook because it does not come with a hefty price tag like other manufacturer’s offerings. Externally, there are no surprises on the MPC (Military Preferred Carbine) M4 rifle—it looks like it should and all controls are traditionally placed. Underneath the MPC’s hood—if you will—is where the rifle’s quality really shines. For example, you will not find other companies producing rifles under $1,000 that use stronger parts, such as the pressure-tested bolt and 4150 chrome-lined, chrome moly vanadium steel barrel on the Windham Weaponry MPC M4.
In case you have not already heard, Richard Dyke, the previous owner of Bushmaster started Windham Weaponry after Bushmaster sold out to Freedom Group. Though Dyke uses Bushmaster’s equipment, these are not Bushmaster clones. Dyke and all the Windham Weaponry employees are meticulous about building a rifle as close to MIL-SPEC as they can. Their attention to detail from the internal to the external parts of the MPC M4 prove they care about producing a top-quality, dependable gun. With over 20 years of experience building AR-15s—these guys clearly know what they are doing. Run a few rounds through one at the range and you’ll know too!
Traditional M4 Styling
Right away you will notice the detachable carry handle, the M203 barrel mount cut out, A2 flash suppressor and six-position collapsible stock. Upon closer inspection, you will find quite a few upgrades that other black rifle makers do not bother to add. For example, the MPC’s trigger guard is aluminum, not plastic. The black, hard-coat anodized finish is flawless without machine marks or scuffs. The MPC M4 comes standard with a dust cover and forward assist. Other companies forego these parts to keep the price down. However, Windham Weaponry claims it will never sacrifice parts for price.
The Windham MPC comes standard with an A4 dual aperture adjustable rear sight and adjustable square post A2 standard front sight. The carry handle is removable to reveal a Picatinny rail, so you may add any optic of your choice. As an added feature without the high price tag—like high-end rifle manufacturers such as Colt or Spike’s Tactical—Windham Weaponry adds dual, M4 oval heat shield handguards for more comfortable shooting.
Also standard is the carbine-length gas tube and direct gas impingement system—common in many AR-15 rifles.
Bolt and 4150 Chrome Moly Vanadium Steel, Chrome-Lined Barrel
There are not many companies that MPI and HP pressure test their bolt, but Windham Weaponry does. Windham Weaponry tests each 158 carpenter steel bolt. For a stronger and heavier bolt, Windham Weaponry chrome-lines the bolt carrier and adds a MIL-SPEC M16 contour. Though the M4 feed ramps are not a necessity on a semi-automatic rifle, Windham Weaponry adds this MIL-SPEC feature so that ammo will feed more reliably during rapid fire-scenarios. Always a topic of hot debate and the Achilles heel for many ARs, knowing the MPC has a properly staked gas key should put your mind at ease.
The 4150 chrome moly vanadium steel, chrome-lined barrel is an upgrade from many other AR-15 barrels. Though not every piece on the Windham MPC is MIL-SPEC, there are not many, if any, other AR-15s that can boast a comparable price with as many features as the Windham.
Commercial vs. MIL-SPEC Buffer
Two components do not meet MIL-SPEC on the Windham MPC M4. Those are the commercial buffer tube and the 1:9 barrel twist. The 1:9 twist rate is the most common for commercial AR-15s. The 1:9 will stabilize a moderately-sized 45- to 69-grain bullet. Most manufacturers go with the 1:9 twist due to the popularity, affordability and availability of 55-grain bullets—which are just about perfect for this platform. For target shooting and home defense, a 1:9 twist rate is a top choice.
There are two differences in the commercial and MIL-SPEC buffer tubes—the shape of the end plate and the diameter. However, when testing, Windham Weaponry found no difference in strength of the commercial tube versus the MIL-SPEC tube. It fired millions of rounds from a commercial tube without problems and it is cheaper to produce. The only reason this will make a difference for you, is if you ever want to change out the stock. Stocks fit differently on each tube. When purchasing an aftermarket AR-15 stock, make sure to buy the one that fits your corresponding tube.
Lifetime Transferable Warranty
Windham Weaponry is so sure of its rifles, the lifetime warranty is good for the entire life of the rifle and transfers from the original owner to any subsequent owners.
When you pick up a Windham Weaponry MPC AR-15 rifle, you will notice right away the tight fit and finish. The trigger is crisp and smooth. With open sights, just a little over 1-inch groups at 100 yards proves its accuracy. Windham Weaponry’s M4 shot any standard ammunition we fed it without problems—including cheap steel-cased to expensive defensive ammo.
Specifications and Features
- Caliber: .223 Remington/5.56mm NATO
- Action: Traditional direct gas impingement system
- Barrel: 16” M4 with A2 flash suppressor, 4150 chrome moly vanadium steel
- Barrel Twist: 1:9”
- Capacity: 30 rounds
- Stock: 6-position collapsible with A2 plastic grip
- Receivers: 7075 T6 aircraft aluminum with flat top upper and detachable carry handle
- Safety: Manual with indicators on left and right side
- Trigger Guard: Aluminum
- Handguards: M4 dual heatshield handguards
- Finish: Black, hard coat anodized finish
- Length: 36.125” extended, 32.375” collapsed
- Weight: 6.85 pounds unloaded
- Warranty: Lifetime transferable warranty
- Made in the U.S.A.
Like it? Want it? Buy it!
Do you own a Windham Weaponry AR-15? Tell us how much you love it in the comment section.
Suzanne joined the content team with over eight years experience at Cheaperthandirt.com. Starting out as a product description writer, Suzanne has extensive knowledge of the Cheaper Than Dirt! product base and is a good resource for suggestions on which products you need. Suzanne specializes in writing for the female shooter, beginner shooter, and the modern-day prepper. Though she prefers plinking with her S&W M&P 15-22, Suzanne also loves revolvers, the 1911, short-barreled AR-15s, and shooting full auto when she gets the chance. Suzanne is a staff writer for Cheaper Than Dirt!