Textured, right-hand and ambidextrous use
At Super Quali Cast, we manufacture precision investment castings for bolt catches for AR-15 platforms such as the M4 and SIG 716. Our OEM-ready firearm component castings are designed to meet strict dimensional and performance requirements. Our default stainless steel bolt catch castings meet OEM tolerance and design standards and are excellent at relaying tactile information. We supply these castings to OEMs and rifle manufacturers in India, the U.S.A., France, Italy, Poland, Israel, Japan, and Australia.
Bolt catches are a part of the lower assembly that works with the bolt carrier group (BCG). It holds the BCG back and locks it when the magazine runs empty. This accomplishes two things: it communicates to the operator that the magazine is empty, and enables rapid chambering of the next round after a magazine change. In addition to the official M4 variant, we bulk-manufacture custom AR-15 bolt catches from a range of alloys.
How We Manufacture Investment Castings for Bolt Catches
We cast AR-15 bolt catch castings in our state-of-the-art foundry using advanced lost wax casting processes to ensure dimensional accuracy and repeatability. Here's an overview of the process.
Precision Molding
Ensures uniform lever geometry and accurate casts.
Controlled Pouring
Prevents cracks in casts, internal porosity, and minimizes shrinkage.
Heat Treatment
Improves mechanical properties, primarily surface hardness.
CNC Machining
Minute adjustments to grooves and overall shape for tight tolerance.
Final Inspection
Dimensional, mechanical, and chemical checks for zero-defect output.
For a complete breakdown of our investment casting process, visit our casting process page.
Technical Specifications of Our Investment Castings for Bolt Catches
| Specification Area | Details |
|---|---|
| Development & Sampling | 25-40 days |
| Casting Process | Investment casting, Lost-wax casting |
| Shell Building Media | Ceramic, Stucco |
| Material Grades | Carbon steel (8620, 4140) |
| Industry Standards | ASTM, ISO, ASME |
| Minimum Wall Thickness | 1.5 mm |
| Maximum Weight | 50 grams |
| Surface Finish | 3.2-6.3Ra |
| Casting Tolerances | CT5-CT7 |
| Heat Treatment Options | Carburizing, Nitriding, Case hardening |
| Surface Treatment Options | Deburring, Bluing, Parkerizing |
Note: Parameters subject to change based on final design.
Why Choose Super Quali Cast for Investment Castings for Bolt Catches
Super Quali Cast combines decades of foundry expertise, advanced manufacturing capabilities, and stringent quality standards to deliver reliable investment castings for bolt catches.
Proven Experience in Manufacturing Investment Castings for Bolt Catches
We have been manufacturing precision investment castings for defence applications for more than a decade. Over the years, we have had first-hand experience in understanding and delivering on operational requirements. We extend the same functional and design-driven understanding when producing investment castings for bolt catches.
Advanced Manufacturing Capabilities
Our leading-edge foundries and years of hands-on experience power our lost-wax casting expertise. We are automation-led, leverage the latest casting technology, and employ skilled personnel. This robust infrastructure helps us manufacture simple and complex components with equal ease, meet required tolerances, and deliver just-in-time.
Material & Application Versatility
As one of the leading investment casting manufacturers in India, we routinely produce custom bolt catch castings, rifle component castings, and other precision cast components using a wide range of materials. Some of the more common alloys we work with include stainless steel, carbon steel, and superalloys such as Inconel. Furthermore, given our experience in producing investment castings for a variety of applications, you can trust us to deliver on your application-specific performance expectations.
Quality, Testing & Global Supply Readiness
We are a part of the international firearms supply chain network, producing OEM bolt catch castings, firearm component castings, and other precision parts with tight tolerances and excellent surface finish. You will find us to be knowledgeable in compliance requirements where international markets are concerned. Additionally, we support third-party testing for all our components for quality assurance.
About Super Quali Cast: Manufacturing Expertise & Capabilities
- Decades of Experience:
Investment casting manufacturers in India for 40-plus years. - Focused Manufacturing:
Compliance-driven defence industry castings, including investment castings for bolt catches, trigger components, and other firearm parts. - Global Reach:
Exporting to leading rifle producers and OEMs in the U.S.A., U.K., France, Germany, Italy, Poland, Israel, Japan, and Australia.
- End-to-End Capabilities:
Comprehensive process, from prototype to production. - Production Scale & Compliance:
Average annual production of 2,400 metric tons. ISO, IBR, PED, Norsok, and Merkblatt W0 compliant.
Discuss Your Investment Castings for Bolt Catches Requirements
Whether you need help with selecting the right alloy grade or making changes to your requirements on the fly - our experts can help. Share your design, platform applicability, and volume requirements with us.
Frequently Asked Questions
Do you manufacture bolt catch plungers, springs, and pins?
No, we do not manufacture bolt catch plungers, springs, and pins since they are not possible to manufacture using the investment casting process. We manufacture bolt catch levers of different shapes and sizes.
Are bolt catches available for the AK platform?
The standard AK platform is more simplistic and mechanical in nature. It does not use bolt catches in its design. Some modern variants may leverage bolt catches. Speak with us to know if we support it.
Can you produce custom bolt catch castings using custom alloys?
Yes, we can produce custom designs with the alloy of your choice or a proprietary mix you use. These designs are for commercial use and apply to the AR-15 platform.
What is the MOQ for Bolt Catches?
The MOQ for bolt catches varies by design complexity, material choice, and delivery location. Please connect with our experts to get the MOQ for your project.
What is the bolt carrier group (BCG) in rifles?
The bolt carrier group in modern rifles is all the components that work in tandem to support the bolt to perform a wide range of actions, from loading the chamber to ejecting a spent round.
Defence Investment Casting Solutions
High-performance casting components engineered for critical flow control applications across global industries.