Guns Rainier Arms UltraMatch Billet Upper & Ambi Lower Combo Set .308 Recoil Staff June 13, 2014 Join the Conversation At RECOIL, we review every product fairly and without bias. Making a purchase through one of our links may earn us a small commission, and helps support independent gun reviews. Learn More Find out more about how we test products. Rainier Arms has expanded their UltraMatch Billet Upper & Ambi Lower Combo Set line with a new .308 Win version. In RECOIL Issue #11, we looked at their AR15 variant, which can be built out for several calibers (5.56mm, .300BLK, .22LR and others), and found it to be an excellent and fully-featured offering. The .308 set is similarly CNC machined from 7075-T6 aluminum, then milspec anodized black with a 60 Rockwell hardness rating. The Rainier set conforms to the DPMS pattern, so the upper is compatible with DPMS high profile handguards and the lower accepts the ever-popular Magpul PMAGs. The lower receiver is chock full of features including an ambidextrous bolt release, QD sling swivel sockets on both sides, integrated trigger guard, tensioning fitment screw and a flared magwell. Note that the upper does not have a forward assist. Rainer is also including their Raptor ambidextrous charging handle with every set. MSRP for the Rainer Arms UltraMatch Billet Upper & Ambi Lower Combo Set .308 is $649. Features: Ambidextrous Extended Bolt Release A4 Feed Ramps 7075 Billet Aluminum Type III Hard Coat Anodized Flared Magwell Integrated Trigger Guard Tensioning Screw for proper Upper/Lower Fit Bolt Catch Assembly Screw (No Roll Pin to install) Uses Standard DPMS Type .308 lower parts kit Upper receiver is compatible with DPMS High profile 308 Handguards Rainier Arms Raptor Ambidextrous Charging Handle Why you can trust RECOIL Since our founding in 2012, RECOIL remains the premier firearms lifestyle publication for the modern shooting enthusiast. We deliver cutting-edge coverage of guns, gear, accessories and technology. We go beyond basic reviews, providing no B.S. buyer’s guides, hands-on testing and expert analysis on everything from firearms and survival equipment to watches and vehicles. Our reviewers are the backbone of our operation and come from diverse shooting backgrounds: Former law enforcement, military veterans, competitive shooters, seasoned hunters and plain old firearms enthusiasts. Furthermore, we’re not just gun experts, but dedicated journalists who adhere to the strictest standards of our profession. At RECOIL, editorial independence is the foundation of everything we publish and the cornerstone of reader trust. Our editors, writers and content creators make all editorial decisions independently, free from outside influence. That boils down to: advertisers don’t dictate our coverage, the outcomes of our reviews or what we recommend in our buyer’s guides. First and always, our commitment is to our audience—ensuring every review and article is accurate, unbiased, and driven by real-world experience. Whether you’re selecting your next firearm, upgrading your gear, or exploring the latest innovations in the shooting world, RECOIL provides the trusted insights you need to make informed decisions. Learn more about our Editorial Standards and how we review products. NEXT STEP: Download Your Free Target Pack from RECOILFor years, RECOIL magazine has treated its readers to a full-size (sometimes full color!) shooting target tucked into each big issue. Now we've compiled over 50 of our most popular targets into this one digital PDF download. From handgun drills to AR-15 practice, these 50+ targets have you covered. Print off as many as you like (ammo not included). Get your pack of 50 Print-at-Home targets when you subscribe to the RECOIL email newsletter. We'll send you weekly updates on guns, gear, industry news, and special offers from leading manufacturers - your guide to the firearms lifestyle.You want this. Trust Us.
