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Angstadt Arms – AR-9 Lowers, Uppers & Glock Mag Parts
Angstadt Arms – Glock Mag-Compatible AR-9 Parts, Uppers & PCC Components
Whether you're building a compact defensive rifle, a suppressed PCC setup, or a competition-ready 9mm AR, Angstadt Arms delivers industry-leading components that combine precision machining, tactical design, and true Glock magazine compatibility.
At Mounts Plus, we proudly carry a wide range of Angstadt Arms AR-9 lowers, uppers, and accessories—perfect for those who want superior performance in every build.
Why Choose Angstadt Arms?
Angstadt Arms specializes in parts for pistol caliber carbines (PCCs), short-barreled rifles (SBRs), and AR-9 platforms. Their gear is engineered for reliability, trusted by law enforcement, and built to run flawlessly with Glock-style magazines.
🔧 Key Benefits:
- Glock Mag Compatibility: Designed specifically to accept Glock 9mm magazines
- Billet Construction: Precision-machined from aircraft-grade aluminum
- Perfect for CQB/SBR Builds: Ultra-compact dimensions with reliable feeding
- Suppressed Ready: Ideal for 9mm sub-gun or tactical home defense builds
- USA Made: Every part is proudly manufactured in Charlotte, NC
- Mil-Spec Fit: Compatible with most standard AR-15 parts and accessories
Best-Selling Angstadt Arms Products
| Product | Category | Best For |
|---|---|---|
| Angstadt Arms AR-9 Billet Lower | PCC/AR-9 Lower | Glock mag builds, home defense rifles |
| Angstadt UDP-9 Upper Receiver | AR-9 Upper | Compact CQB & SBR setups |
| 3-Lug Blastwave QD Devices | Muzzle Devices | Suppressed or quick-detach builds |
| 9mm Bolt Carrier Group (BCG) | Internal Parts | Smooth cycling with blowback AR-9s |
| AR-9 Buffer Kits (Standard/Heavy) | Recoil Systems | Dialed performance for your build |
These products are ideal for custom 9mm AR-15 builds that require precision, compatibility, and modern tactical design.
Ideal For:
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🔫 Pistol Caliber Carbine (PCC) competition setups
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🏠 Home and personal defense ARs
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🔇 Suppressed builds (sub-gun class)
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📏 Compact CQB rifles & SBRs
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🧰 Builders upgrading from generic AR-9 components
Why Buy Angstadt Arms from Mounts Plus?
We don’t just sell parts—we help shooters build confidence. At Mounts Plus, you'll find:
✅ Authorized dealer of Angstadt Arms
✅ Fast U.S. shipping and real-time inventory
✅ Expert support from AR platform professionals
✅ Competitive prices on AR-9 lowers, uppers, and accessories
Build smarter, shoot straighter, and trust your gear—every part matters.
🔗 Complete Your AR-9 or PCC Build with Related Parts
Looking for high-performance upgrades to pair with your Angstadt Arms lowers, uppers, and accessories? Check out these related components:
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🧱 AR-9 Buffer Kits – Get smoother cycling with tuned buffer weights for blowback 9mm AR builds.
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🎯 AR Build Tools & Assembly Kits – Build or maintain your AR-9 with professional-grade tools.
From CQB home defense rifles to USPSA PCC race guns—Mounts Plus has the components to help your Angstadt Arms setup run flawlessly.
Frequently Asked Questions (FAQ)
Q: Are Angstadt Arms lowers compatible with Glock magazines?
A: Yes. Angstadt AR-9 lowers are engineered to work with most factory and aftermarket Glock 9mm magazines.
Q: What buffer weight should I use with an Angstadt AR-9 build?
A: It depends on your setup, but most builds benefit from a 5.4oz (standard) or 6.5oz (heavy) buffer to reduce bolt bounce.
Q: Can I run Angstadt Arms uppers with any standard AR-15 lower?
A: No. Their 9mm uppers are optimized for use with dedicated AR-9 lowers or conversion setups with compatible BCGs.
Q: Is Angstadt Arms good for suppressed builds?
A: Absolutely. Their components are designed with suppression and compact reliability in mind—especially the UDP-9 line.
Q: Where are Angstadt Arms parts made?
A: All Angstadt Arms components are made in the USA, in Charlotte, North Carolina.