AR Parts Shop
CSS designs, manufactures, and supplies high-quality components for the AR-15/M16/M4 family of modern sporting rifles. Our parts are precision-engineered to meet OEM standards and are ideal for both new builds and replacement needs. All components are proudly manufactured in the USA to ensure consistent performance and reliability.
Please refer to the table below for a list of available parts.
Contact us directly for quantity options and pricing details.
- Action Spring
- Auto Sear Assembly
- Bolt Catch Spring
- Buffer Retainer Spring
- Car Action Spring
- Charging Handle Latch
- Charging Handle Latch Spring
- Cover Spring
- Detent Take Down Spring
- Disconnector
- Disconnector Spring
- Ejection Port Cover Door
- Ejector Spring (Selector Spring)
- Extractor Spring
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- Front Sight Spring
- Gas Ring, Bolt
- Gas-Ring-308
- Hammer Spring 2 (Semi Auto Only)
- Hammer Spring (3rd Burst or Full Auto)
- Handguard Cap
- Handguard Cap-Grenade Launcher
- J-Wire
- Magazine Catch Spring
- Plunger Spring / Forward Assist
- Receiver End Plate
- Sling Swivel
- Trigger Spring
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REQUEST OUR PRICING BROCHURE TODAY
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| We accept Visa, Mastercard, and AMEX |
| For pricing information, please email us. |
Please visit our Defense & Firearms page to learn more about CSS’s 86 years of experience supporting the firearms and defense industry. For questions about our firearms component and assembly manufacturing capabilities, please feel free to submit a Request for Quote or Contact Us directly.
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Countries We Supply
What Our Clients Say about Working with CSS
"I haven't worked directly with a whole lot of spring manufacturers in the past, but it's been absolutely great working with CSS so far. They are head and shoulders above other folks I've worked with – quick reply, detailed/thorough, helpful in teaching the process, forthright in offering solutions, etc. I really appreciate the help thus far and looking forward to continuing to work together."R&D Engineer, Top Tier Surgical Device Company"I have been impressed with the professionalism and execution of your company and personnel, and I'd like to extend a sincere thank you. I can honestly say it has been a pleasure working with you and I look forward to continuing business with your company!"R&D Engineer, BD"One of the most important things we look for in a partner is value engineering and value analysis to help us reduce costs. CSS provided us with virtually a one-stop-shop for very fast feedback that helped us design new models for manufacturability."VP of New Product Development, Smith & Wesson"Connecticut Spring & Stamping is an exceptional supplier. Their engineering teams have supported Teleflex Medical through successful product designs & launches. They respond quickly whenever the need arises, and deliver with a world class level of service and quality."Teleflex Medical"Your organization has shown an outstanding quality history on all of the various parts you ship to Colt; a true commitment to supplying our company with a quality product."Director of Quality, Colt Defense
