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Rock River Arms New Operator DMR Series Rifles

Rock River Arms is introducing a new line of Designated Marksman Rifles (DMR) for personal self-defense or LE duty applications.

Rock River Arms New Operator DMR Series Rifles

Rock River Arms New Operator DMR Series Rifles (Photo courtesy of Rock River Arms)

Rock River Arms, the industry's most respected name in Modern Sporting Rifles and pistols, introduces its new Operator DMR (Designated Marksman Rifle) series for 2023. This new series includes four models chambered for .308/7.62x51 and two models chambered in .223/5.56 NATO. Both chamber variants offer configurations suited for personal defense use and LE duty applications.

.308/7.62x51 Variants

The .308/7.62x51 models are distinguished by barrel length. Two models — the Operator DMR OP1005BT and the Operator DMR Enhanced OP1007BT — feature 20-inch chrome-lined barrels and share several common components, such as a low-profile gas block, mid-length gas system, RRA two-stage Ultra Match trigger, 17-inch lightweight free-float M-LOK rail handguard, BCM SOPMOD buttstock, Magpul Pro Series MBUS flip-up sights, LAR-BT3 billet upper and lower receivers, QD mount, five-slot rail assemblies, and a Hogue beavertail grip.

Those seeking expanded function should consider the Operator DMR Enhanced OP1007BT. The highlight of this model is the SilencerCo Chimera 300 suppressor. Additional upgrades include an additional RRA 3-slot rail assembly and an ARCA Swiss Rail Adapter.

When greater mobility and hard-hitting performance are needed, the 16-inch Operator DMRs answer the call. Chambered in .308/7.62x51, these rifles are built on RRA's LAR-BT3 billet upper and lower receivers and come with chrome-lined, 1:10 twist barrels that deliver 1.5 MOA accuracy at 100 yards. The OP1010BT comes with Magpul MBUS Pro sights, QD mount, and RRA's 5-slot rail assemblies. The OP1012BT, though, is enhanced with a SilencerCo Chimera 300 suppressor, an additional RRA 3-slot rail assembly, and an ARCA Swiss Rail Adapter.

.223/5.56 NATO Variants

In keeping with the Designated Marksman Rifle concept, RRA is also offering two Operator DMR models chambered in .223/5.56 NATO — the OP1505 and the OP1510. Both Operator DMRs in the .223/5.56 NATO chamber use the RRA forged LAR-15M lower and forged A4 upper receivers as their framework. The commonalities continue with the RRA two-stage Ultra Match trigger group, A2 flash hider, carbine-length gas system, low-profile gas block, Magpul Pro Series MBUS flip-up sights, BCM SOPMOD buttstock, 5-slot rail assembly, QD mount, and Hogue beavertail grip. The key differences are found in the barrel and handguard configuration.

Model OP1505 features a 20-inch chrome-lined barrel with a 1:7 twist. Paired with this barrel is RRA's 17-inch lightweight, M-LOK compatible handguard. Model OP1510 includes a shorter 16-inch chrome-lined barrel with a 1:9 twist rate. For this application, RRA's 13-inch lightweight handguard is employed. The new Operator DMR series covers the spectrum of premium AR-platform rifles for personal defense, marksmanship, and specialty law enforcement applications. To see the full range of firearms, components, and accessories offered by RRA, visit the Rock River Arms website, and be sure to keep an eye out for a complete review in an upcoming issue of Firearms News! 




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