Description
Let me paint you a picture. You’re looking for a .308 AR-platform rifle that doesn’t feel like a compromise. You want the reach and power of the caliber, but in a package that handles more like a duty rifle than a cumbersome bench gun. You want it to work, out of the box, without a pile of receipts for ‘mandatory’ upgrades. That’s the exact scenario where the Windham Weaponry R20FFTM, .308 Win, 20″, Magpul MOE Fixed Stock, 5rd makes its case. I’ve run a few hundred rounds of mixed brass and steel-case through one, and it carved out a very specific, very useful niche.
So, what is it? The Windham Weaponry R20FFTM is a direct-impingement .308 Winchester/7.62x51mm NATO rifle built on a forged 7075-T6 aluminum receiver set. It features a 20-inch chrome-moly barrel with a 1:10 twist, a Magpul MOE fixed rifle stock, and ships with a single 5-round magazine. Priced at $1441.29, it’s a purpose-built, no-fuss rifle designed for reliable performance right from the start.
The heart of this rifle is its balance. That 20-inch barrel gives you the full velocity potential of the .308 cartridge, which matters for longer shots or when using heavier bullets. But paired with the fixed Magpul MOE stock—which is far slimmer and lighter than a traditional A2 stock—the overall feel is surprisingly agile. It’s not a lightweight mountain rifle, but the weight distribution is intelligent. The heft is centered, making it steady offhand or from improvised rests. The rifle tips the scales at a manageable 8.9 lbs unloaded, a figure that speaks to its practical, not pared-down, construction.
Windham’s legacy from Bushmaster means they understand the AR platform inside and out. This rifle uses a DPMS-pattern high-profile receiver, which is the most common standard. That’s a huge benefit. It means the rail space on the upper receiver is compatible with the vast majority of optics mounts and accessories you already own or are looking at. Want to throw a Vortex Viper or a Primary Arms SLx scope on there? The mounting is straightforward. The trigger is a standard mil-spec single-stage—it’s serviceable, predictable, and honestly, it breaks cleaner than some I’ve tried on rifles costing more.
The fixed stock is a tell. This isn’t a rifle chasing tactical trends. The Magpul MOE fixed stock provides a consistent, solid cheek weld and length of pull every time. There’s no wobble, no rattle. It houses a storage compartment, and its textured finish stays put against your shoulder. Combined with the rifle-length gas system on the 20-inch barrel, you get a recoil impulse that’s more of a firm push than a sharp jab. It’s pleasant to shoot, which means you’ll practice more. The rifle is mil-spec compatible where it counts, and the fit out of the box is excellent—no wiggling receivers or loose parts.
| Specification | Detail |
|---|---|
| Caliber | .308 Winchester / 7.62x51mm NATO |
| Barrel | 20″, Chrome-Moly, 1:10 Twist, Rifle-Length Gas |
| Overall Length | 40.5″ |
| Weight (Unloaded) | 8.9 lbs |
| Stock | Magpul MOE Fixed Rifle Stock |
| Magazine | 1x 5-round Steel Magazine |
Pros & Cons
Here’s the thing—every tool has its trade-offs. The pros are clear: fantastic out-of-the-box reliability, a balanced and shootable .308 platform, and DPMS-pattern compatibility that keeps your options wide open. The fixed stock and 20-inch barrel make it a natural for a magnified optic and deliberate shooting. The cons depend on your mission. It’s not a compact CQB gun, obviously. The 5-round mag is great for hunting regulations or bench shooting, but you’ll likely want to pick up some 10 or 20-round PMAGs for other uses. At just over forty inches long, it requires a thoughtful approach to storage and transport.
Who is this for? This rifle is for the shooter who views a .308 as a precision tool, not a blunt instrument. It’s for the Missouri hunter who wants a reliable, optics-ready rifle for deer or hog in more open terrain. It’s for the marksmanship enthusiast who wants a durable, straightforward rifle for medium-range target work without the complexity or cost of a dedicated precision chassis system. It’s also a solid foundation rifle—if you know you want to build up a .308 AR over time, starting with a quality, no-drama core like this is a smart move.
Frequently Asked Questions
Q: What type of magazines does this rifle use?
A: It uses SR-25 pattern magazines. The rifle ships with a 5-round steel magazine, but it is fully compatible with Magpul PMAG .308 LR/SR magazines, which are widely available and reliable.
Q: Is the barrel threaded for a muzzle device?
A: Yes, the 20-inch barrel features a standard 5/8″-24 thread pattern under the included A2 flash hider. This allows you to easily install a muzzle brake, compensator, or suppressor mount if desired.
Q: Can I use my existing AR-15 parts on this .308 rifle?
A: Some small parts are compatible, like the pistol grip, trigger guard, and safety selector. However, due to the different caliber and platform size, critical components like the bolt carrier group, barrel, handguard, and lower receiver parts are specific to the .308/AR-10 platform and are not interchangeable with AR-15 parts.
If the idea of a dependable, well-balanced .308 that gets the fundamentals right appeals to you, this Windham Weaponry R20FFTM is ready to go. It’s available at firearms-missouri.com for Missouri residents and nationwide. FFL transfer required for firearm purchases.


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