What is the best material for AR-15 bolt?

The V Seven Titanium BCG is the best AR-15 bolt carrier group that you’re going to find. It’s lighter than steel and stronger than either steel or aluminum. It’s both Magnetic Particle Inspected and High-Pressure Tested, pass those and you’re the best of the best.

What material is a bolt carrier group?

Steel
Steel Bolt Carrier Groups – The choice of our military’s M16 and M4 BCG’s have all been made by steel because they are tough, durable, heat resistant and able to handle sustained abuse. Though steel is the most common material for BCG’s, different types of steel are used for individual components.

Is Nickel Boron BCG better than Nitride?

That Nickel Boron finish is MIL-SPEC on some Army mortar tube components. Both of these finishes are far ahead of phosphate as far as slickness and ease of clean up are concerned. In both categories though, Nickel Boron has the edge over Nitride.

What are AR bolts made of?

It also absorbs a ton of force as gas expands inside the carrier. To handle this pressure and heat safely, the bolt and carrier are made from three types of forged steel: Carpenter no. 158, 8620, or 9310.

Can you put any bolt carrier in an AR-15?

Bolt Carrier Group FAQs & Summary The AR-15 and M16 BCG are interchangeable with any standard rifle. Using an M16 BCG will not make a semiautomatic rifle fully automatic.

Is phosphate or nitride better?

A nitride exterior will protect the barrel longer than a phosphate exterior finish. However, a chrome-lined, or phosphate, barrel will hold up better to sustained fire than a nitride interior. Nitride has a slight edge in accuracy and price. However, phosphate coated/chrome lined barrels are more common.

Is 8620 steel good for a bolt carrier?

AT3™ AR 15 Upper Receiver and SPEAR Handguard Combo This LBE Unlimited Bolt Carrier Group is designed specifically for the AR15 (not compatible with the M16 rifle). It is a Phosphated BCG made from 8620 Steel. For a great Bolt Carrier Group at a great price, go for the AR15BLT.