2A Armament Titanium Takedown Pin Set

Product Description

The 2A Armament Titanium Takedown Pin Set is a replacement pin set for AR-15 lower receivers, machined from titanium to reduce weight at the hinge point where the upper and lower receivers meet. These pins replace the standard steel takedown and pivot pins in mil-spec and most aftermarket lowers.

Titanium is lighter than steel but harder than aluminum. That makes it well-suited for pins that cycle repeatedly during field stripping and reassembly.

Builders working toward a lightweight build often start with titanium hardware at high-wear pivot points. The takedown pin set is one of the simplest swaps in that process.

Key Facts

• Brand: 2A Armament
• Product name: 2A Armament Titanium Takedown Pin Set
• SKU: 2A-TI-TDP
• Categories: Lower Part Accessories, Parts

How Titanium Takedown Pins Compare to Steel

Standard AR-15 takedown pins are steel. Steel is durable and inexpensive, but it adds weight. Titanium is roughly 45% lighter than steel by volume and resists corrosion without a finish.

The trade-off is hardness. Titanium is softer than hardened steel but harder than the aluminum used in most receivers. That balance works well for pins that see friction but not the impact stress of a bolt carrier.

For shooters focused on overall rifle weight, swapping to titanium hardware across the lower can shave several ounces. The takedown pin set is a straightforward place to start.

Installing Titanium Takedown Pins in an AR Lower

Takedown pins install the same way regardless of material. The pivot pin passes through the front lug of the lower receiver. The takedown pin passes through the rear takedown lug and is retained by a detent and spring.

If you’re building a lower from a stripped receiver, the pins go in after the detent and spring are seated in their channels. If you’re replacing existing pins, you’ll need to capture the detent during removal so it doesn’t launch across the room.

The fit should be snug but not binding. If the pins are too loose or too tight, the issue is usually with the receiver’s tolerances, not the pins. Call 817-393-4000 to confirm fitment for your specific lower.

What to Know Before Buying Titanium Hardware

Titanium is a common upgrade in competition and ultralight builds. It cuts weight, but it won’t improve accuracy or reliability on its own. Think of it as a finishing touch once function is sorted.

Some builders replace every steel pin and fastener in the lower with titanium. Others swap only the takedown pins and buffer retainer. Both approaches work. The choice depends on how much weight you’re trying to shed and how much you want to spend.

Titanium is also a good fit for builds that see wet or saltwater environments, since it resists rust without a coating. Browse more lower part accessories or explore the full parts selection for additional upgrade options.

Buying from Western Sport in Roanoke, TX

Western Sport is a licensed FFL/SOT dealer serving the North Texas and DFW area since 2007. We handle transfers, offer gunsmithing services on site, and stock parts for AR builds and upgrades. Call 817-393-4000 with questions about fit, installation, or ordering.

Frequently Asked Questions

Will 2A Armament titanium takedown pins fit my AR-15 lower receiver?

These pins are designed for mil-spec AR-15 lower receivers and most aftermarket lowers that follow mil-spec dimensions. If your lower has oversized or undersized pin holes, these may not fit correctly. Call 817-393-4000 to confirm compatibility with your specific receiver.

How much lighter are titanium takedown pins than steel pins?

Titanium is approximately 45% lighter than steel by volume. The exact weight savings depends on the size and design of the pins. For total weight reduction in a build, titanium hardware works best when combined with other lightweight components like a titanium buffer retainer or bolt catch.

Can I install titanium takedown pins myself or do I need a gunsmith?

Most builders can install takedown pins at home with basic tools. You’ll need a punch or slave pin to hold the detent in place during installation. If you’re new to AR builds or uncomfortable working with detents and springs, Western Sport offers gunsmithing services in Roanoke. Call 817-393-4000 to schedule.

Do titanium takedown pins wear out faster than steel pins?

Titanium is softer than hardened steel, so it can show wear marks sooner under heavy use. However, titanium is harder than the aluminum alloy used in most receivers, so wear is typically minimal. The pins themselves are designed to be the sacrificial part if wear occurs, protecting the receiver’s pin holes.

What is the difference between the takedown pin and the pivot pin?

The pivot pin is the front pin that holds the upper and lower receivers together at the front lug. The takedown pin is the rear pin, which is spring-loaded and allows you to separate the receivers for cleaning or transport. Both are required for normal AR-15 operation, and this set replaces both.

Does 2A Armament offer a warranty on the titanium takedown pin set?

Warranty terms vary by manufacturer and are not listed for this product. Contact 2A Armament directly for warranty details, or call Western Sport at 817-393-4000 and we can help you get that information.

Additional information