Rimfire Sports will be closed from 12/18/25 through 12/26/25 For the Christmas holiday. Orders submitted after Noon on 12/17/25 and while we are closed will be processed and shipped when we reopen.

Sign In If you haven't already, please 'Sign In' to make ordering quicker. Click on a category below to list products or to expand the category. Can't find what you want? Search by keyword using the Search function. Categories: Return and Exchange Policy AR-15 Accessories Beretta Accessories Browning Buck Mark Accessories Closeouts & Specials Gift Certificates Glock .22LR Conversion Kits GSG-522 / GSG-5 Accessories Gunsmithing Tools HK 416 & MP5 Rimfire Accessories Magazines New Products Optics Remington 597 Accessories Ruger 10/22 Accessories Ruger 10/22 Takedown Accessories Ruger 77/22 Accessories Ruger Mark II, Mark III & 22/45 Accessories Ruger Mark IV Accessories Ruger Mini-14 Accessories Shooting Accessories Sig Arms Accessories Smith & Wesson Accessories Tactical Solutions Pac-Lite Receivers Tactical Solutions Trail-Lite Barrels Volquartsen Pistols and Rifles Walther P22 Accessories Questions, Problems, Difficulties? Note: We are not a store front. No retail sales on premises. Phone Hours: 703-729-8716 (Mon - Sat: 9:00AM - 5:00PM EST) Fax: 888-622-2240 support@rimfiresports.com Dealers may either email or fax their FFL using the info above. We attempt to answer email within 24 hrs, so please be patient over email. Information FAQ Free Shipping on all orders! Best Sellers Green Mountain Heavy Taper Sporter 10/22 17" Barrel Volquartsen Ruger Mark II / III & 22/45 Target Sear Trail-LITE Compensator Trail-Lite, 4",Threaded End, Various Finishes Volquartsen Ruger 10/22 High Performance Kit

Best Sellers Green Mountain Heavy Taper Sporter 10/22 17" Barrel Volquartsen Ruger Mark II / III & 22/45 Target Sear Trail-LITE Compensator Trail-Lite, 4",Threaded End, Various Finishes Volquartsen Ruger 10/22 High Performance Kit SureFeed Magazine Follower Spring, Ruger MKIII/ IV, 2-pack-Out of Stock   Quantity in Basket: none Code: VC4FS-2 Price: $8.00 Shipping Weight: 0.00 pounds       Quantity:   The SureFeed Magazine Follower Spring for the Ruger MKIII and MK IV is 25% stronger than the factory spring. The increased spring rate improves feeding in all Ruger MKIII and MK IV magazines. The SureFeed Magazine Follower Spring will eliminate feeding issues caused by the round either being stuck or slow to feed from the magazine. This happens during both slow and rapid fire.