Parts Is Parts

by
posted on April 8, 2013
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
20134815276-bolt_c_m.jpg

I am not talking about a 1980’s advertising campaign lamenting composition chicken in fast food. Guns are made out of (you guessed it) parts. Gun parts, to be precise—and a lack thereof is affecting the unmet surge in demand for semi-automatic AR-style rifles.

The AR is a pretty complicated rifle. Making use of “modern” materials, the original Colt AR-15 had 122 parts, ranging from the magazine box (1) all the way to handguard snap ring (122). Much of the total comes from little bitty pins, springs, snap rings and lock washers.

Large components, such as the upper and lower receivers, are what many think of as the firearm, and those are often made by the company whose name is on the side of the lower receiver. Just about any company (with the right programming and proper manufacturer’s license, of course) with a CNC machine can produce an AR receiver. The major stumbling block for many gunmakers today in upping or maintaining AR production capacity is the bolt carrier. Regardless of how many upper and lower receivers a firm can churn out, without a bolt carrier an AR, to paraphrase, “Is Parts.” An AR cannot function without one.

The bolt carrier is a fairly complicated part to manufacture. So much so that there are few firms in the country that specialize in making them. Those companies are running at full capacity, with three shifts, but are not producing enough to meet demand. Woe to the smaller AR maker that does not have its own machines or a tight business relationship with a machine shop that turns out bolt carriers.

So why don’t smaller makers just make their own? That is a matter of cost and time. To my knowledge, no AR company in the United States makes 100 percent of its parts; there is no reason for a gunmaker to manufacturer its own detent springs. It would be folly. Especially when a spring-making company can supply a better part at a much better price than a company could itself. A company with dedicated machines and large capacity can make and sell a bolt carrier for, say, $20. If an AR firm had to make the same part itself, it would likely cost more than three times as much. And that company’s machines could not make other parts. It would also have to write new programs to the machine to make the carrier, which also incurs cost. It does not make sense to buy new CNC machines to dedicate to bolt carriers as no one knows when demand will return to “normal” levels, and then they will cost $20 again.

Also, at least one maker of ARs went out of business during the last surge in demand because he could not get critical parts (including bolt carriers and barrels) during the height of demand. He was left with a pile of parts he had paid for, but no rifles he could sell. By the time he had the parts to assemble rifles, demand had receded and no one wanted to buy them.

There are only two kinds of AR makers right now: Haves and have nots—those that have bolt carriers and those that don’t. “Parts Is Parts” only when you have all the ones you need.

Latest

Suppressors
Suppressors

A Victory That Ends A Gun Registry

On August 5, U.S. District Judge James Wesley Hendrix of the Northern District of Texas held that key regulatory provisions of the NFA are unconstitutional as applied to certain categories of firearms.

Criminal Clues: Tips to Avoid Appearing Like a Soft Target

You don’t have to be the hardest target, but you don’t want to be the softest. Here are some tips on how to avoid becoming a target for a criminal looking for his or her next opportunity.

Beretta A400 Solo: For the One-Gun Hunter

The new Beretta A400 Solo is designed as a no-nonsense hunting shotgun that is an entry point to the company’s premium semi-auto shotgun family.

The Armed Citizen® Aug. 10, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Review: FK Brno PSD-C

Manufacturers have achieved excellent results with small-caliber bottleneck designs, as evidenced by cartridges such as the .357 SIG and 5.7x28 mm. The .30-caliber 7.5 FK continues this legacy and is now chambered in the FK Brno PSD-C.

Firearm Industry Celebrates America's 250th With More Commemorative Options

For the entirety of 2026, we're celebrating America's 250th anniversary, and the firearm industry continues to roll out commemorative products to mark the occasion.

Interests



Get the best of American Rifleman delivered to your inbox.