Rifle Parts
Whether you're building a new rifle from scratch or looking to upgrade an existing firearm, our vast selection of rifle parts has everything you are going to need in that journey. At Rainier Arms' selection of rifle parts, you can find a wide variety of products including lower and upper parts, trigger parts, muzzle devices, and many more.
Explore our selection of high-quality parts coming from various leading manufacturers like Strike Industries, Magpul, BCM, and many more.
Also, don't forget to check our specially-made Rainier Arms barrels for your firearms.
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Rainier Arms Match 6.5 Creedmoor AR-10/LR308 Barrel - 22" Nitride★ ReviewsPopup content startsclose Popup
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from real shoppers4.8 star rating 30667 Reviews- Site Reviews
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Thank you for posting a review!We value your input. Share your review so everyone else can enjoy it too.Thank you for posting a review!Your review was sent successfully and is now waiting for our staff to publish it.Verified Reviewer0.0 star rating07/22/25JJoe C.Verified Buyer5.0 star rating07/21/25Amazing pistol. Great trigger, veryReview by Joe C. on 21 Jul 2025 review stating Amazing pistol. Great trigger, veryAmazing pistol. Great trigger, very flat shooting. Almost feels like cheating.On Bul Armory 1911 Tac Pro Optic Ready 9MM Pistol - 5" SilverJJay5.0 star rating07/20/25What else can you ask for?Review by Jay on 20 Jul 2025 review stating What else can you ask for?KAC is this the only brand I trust for vertical forward grips. I've dealt with Rainier arms several times now and I am not disappointed with them. I'm actually very impressed with how fast they ship and how communicative they are.On Knight's Armament Company (KAC) MIL-STD-1913 Vertical Grip - BlackBBrent W.Verified Buyer5.0 star rating07/18/25Great Hand Stop!Review by Brent W. on 18 Jul 2025 review stating Great Hand Stop!Great Hand Stop!On Drew Meyer Defense Mod 2 Chopstop M-LOK HandstopMMatthew O.Verified Buyer5.0 star rating07/18/25Riflespeed Straight Gas TubeReview by Matthew O. on 18 Jul 2025 review stating Riflespeed Straight Gas TubePerfect fitOn Riflespeed Straight Gas TubePPeterVerified Buyer5.0 star rating07/17/25Exactly what I wantedReview by Peter on 17 Jul 2025 review stating Exactly what I wantedI've waited years to get an optic for my pistol. I knew I wanted something fairly affordable, with a green dot because I have astigmatism, and solar backup. This ticked all the boxes and was the best price I could find, even before they had a sale for Memorial day. I wish I'd bought this years ago, and I'm not looking to add one to my smaller gun.On Holosun HE507C-GR-X2 Green Circle Dot Sight$350.00 -
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