Description
The Remington R25 GII, 260 Rem 20″ Barrel A3 Upper, Mossy Oak Infinity is a complete, camo-clad upper receiver assembly chambered in the flat-shooting .260 Remington cartridge. It’s designed to convert a standard AR-10 pattern lower into a capable, mid-range hunting or precision rifle, offering a significant performance boost over common calibers without a custom build’s full cost. This setup provides a practical path to a dedicated hunting rig.
Key Features
- Chambered in .260 Remington for superior long-range ballistics and reduced wind drift compared to .308 Win.
- Complete 20-inch barrel A3 flattop upper assembly with Mossy Oak Infinity camouflage finish.
- Ready to mount on a compatible DPMS-pattern AR-10 lower receiver—no gunsmithing required.
- Ideal for hunters pursuing medium to large game like whitetail, mule deer, or pronghorn at extended ranges.
- Offers a cost-effective entry into a precision-oriented caliber versus a complete custom rifle.
Specifications & Details
| Caliber | .260 Remington |
| Barrel Length | 20 inches |
| Upper Type | A3 Flattop |
| Finish | Mossy Oak Infinity Camo |
| Compatibility | DPMS-pattern AR-10 Lower |
| Magazine Compatibility | PMAG® LR/SR GEN M3 |
Here’s the thing—the .260 Remington is a sleeper cartridge. It essentially takes 6.5mm Creedmoor-level performance (which it predates) and packages it in a .308 Winchester case. That means you get the high ballistic coefficient of 6.5mm bullets for less drop and wind drift, all from a platform many shooters already own. The 20-inch barrel is a smart middle ground, giving you enough velocity for the cartridge to shine without becoming a cumbersome, unwieldy rifle in a blind or while stalking. The complete upper assembly is the budget-conscious builder’s best friend. At $1285.35, you’re investing in the heart of the system—the barrel, bolt, and receiver—where accuracy lives. You pair it with a lower you might already have, saving hundreds versus a complete factory rifle in this niche caliber.
Who This Is For
This upper is for the hunter or shooter who understands ballistic efficiency but is pragmatic about their wallet. It’s for the AR-10 owner who wants to repurpose a lower for a dedicated hunting season without a second complete rifle. It’s also for the precision shooter on a budget who wants to step up from .223/5.56 or .308 without the $2,500+ price tag of a full custom 6.5 Creedmoor rig. If you chase game across Missouri’s open fields or out west where shots can stretch out, this setup makes sense.
Pros & Cons
Pros: The .260 Rem cartridge offers genuinely better long-range performance than the common .308. The complete upper is drop-in ready for a compatible lower, massively simplifying the build. The Mossy Oak finish is durable and provides real concealment. You get Remington’s factory quality and barrel for a price that undercuts many custom options.
Cons: .260 Remington ammo is less common and often more expensive than .308 or 6.5 Creedmoor—you’ll likely be handloading for best results and economy. It requires a specific DPMS-pattern AR-10 lower; not all “AR-10” lowers are compatible. The 20-inch barrel, while ballistically helpful, makes for a longer overall firearm that can be less handy in thick brush.
Frequently Asked Questions
Q: What lower receiver do I need for this R25 GII upper?
A: You need a DPMS-pattern AR-10 lower receiver. It is not compatible with Armalite-pattern AR-10 lowers. Many brands like Aero Precision M5, PSA PA-10, and certain Remington-branded lowers use this pattern. Always verify compatibility before purchasing.
Q: Is .260 Remington good for deer hunting?
A: Absolutely. It’s an outstanding deer cartridge, even at extended ranges. With proper 120-140 grain hunting bullets, it delivers ample energy with less recoil and flatter trajectory than a .308 Winchester, making shot placement easier. It’s a very ethical choice for medium game.
Q: Does this come with sights, a bolt carrier group, or charging handle?
A: As a complete upper assembly, it includes the barrel, handguard, and upper receiver. It typically includes a bolt carrier group and charging handle, but you should confirm with the seller. It does not include iron sights or an optic—those are separate purchases you’ll need to budget for.
This Remington R25 GII upper represents a clear value play. You get a modern, efficient hunting caliber in a ready-to-run package that leverages the flexibility of the AR platform. It’s a tool that does a specific job very well. For the hunter looking to extend their effective range or the shooter wanting a precision project without a custom price, this assembly delivers serious bang-for-buck. This product is available at firearms-missouri.com for Missouri residents and nationwide. See if this practical upgrade fits your needs.
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