Quick Answer: What’S Better Billet Or Forged Lowers For AR?

Does an AR lower affect accuracy?

OP: the reason the upper and lower fit on an AR doesn’t affect accuracy while stock fit on a bolt action does is because of the design differences between those two types of rifle.

On an AR the barrel, forend, action, and all sights (iron or optic) are all contained in the upper receiver..

What is a billet block?

A billet is a solid block of aluminum (or any material) with the size depending on the size of your desired part. The larger the desired part, the larger the billet. Contrary to casting, billet parts are created by removing excess material from the billet, essentially the part is carved out of solid aluminum.

What is a billet steel?

Before steel products are sold on the market, the steel must first be processed into more functional pieces. Raw steel cannot be of use while in its pure form, thus it has to be cast into shape. The freshly made steel, which is still in the form of a metal bar or rectangle, is called steel billet.

Can you put a forged upper on a billet lower?

It really doesn’t matter. Whatever floats your boat is fine, compatibility is the same for most billet and forged unless the billet lower has some ridiculous machining on it.

Do polymer lowers break?

One of the primary differences is the buffer assembly. This is where polymer lowers tend to be weaker in nature. The torque applied to the buffer tube and castle nut can stress and break a polymer AR-15 receivers. There are plenty examples of this happening.

Is billet forged?

There are multiple ways to manufacture a lower but the most commonly discussed are forged AR-15 lowers and billet AR-15 lowers. … Billet AR-15 lowers are made by taking a single block of aluminum and having a CNC machine mill out the profile of a lower.

Which is better polymer or aluminum?

i like polymer for its ability or take abuse without being as prone to cracking as aluminum is. it absorbs impact better, and returns to its origianl shape if it gets bent out of shape for some reason. the same cannot be said for steel and aluminum. polymer has no finish to wear off from holsters or use.

How are ar15 lowers forged?

A forged AR15 lower is essentially a block of high grade aluminum that is super heated, and then hammered into the shape of a lower receiver. The forging process hammers the molecules of the aluminum together, thus making it incredibly strong. … A finished (and anodized) 80% forged receiver.

What is better cast or billet?

When you machine something from a solid billet, you can choose stronger metals with higher yield strengths. You’re not limited by that material’s ability to flow when it’s melted. So even though it’s not true to say billet is always stronger than cast, billet will be stronger for a given product.

What is a billet used for?

A billet is a section of metal used for rolling into bars, rods and sections. It can be produced with ingots or directly by continuous casting. Billets are used as raw materials or feedstock in extrusion, forging, rolling and other metal-processing operations.

Are polymer lowers any good?

Yes, polymer 80 lowers are quite good. Our customers have loved them for quite a few reasons: They’re more affordable than metal lowers and jigs. They’re easier to machine and build with. They’re capable of taking some real abuse, as any good AR should.

Is a billet lower better?

Billet lowers are usually substantially more money then forged lowers. The reason for this is in the manufacturing process, not the strength or quality of the end product. Remember a machined lower starts with an entire billet block larger than the end product.

What is billet upper receiver?

A billet receiver starts out as a block of a material and isn’t anything special other than being a rectangular block of aluminum (also called ‘stock’). To make a billet block into an AR receiver, the block is placed into a milling machine and material is removed until it begins to take the desired shape.

How much does a billet block cost?

Pricing starts around $6,800, so these aren’t really intended for your street machine, but Dart reports that the response from the racing community has been stronger than anticipated. For more information on the billet blocks or any of Dart’s other cast blocks or heads, go to.

Is forged or billet lower better?

Metallurgists agree that a forged piece of aluminum is stronger than cast or billet. The reason being, when the material is shaped under pressure, its ‘grain’ follows the same shape as the part. As a result, the product manufactured is stronger due to the continuous grain characteristics allowed by the forging process.

Does billet steel rust?

Yes! Over time it actually tarnishes and gets a cloudy appearance. By comparison, stainless steel does not corrode, stain or rust in harsh environments. … 304 Stainless steel by nature is less thermally conductive.