S&W M&P15-22 Sport Review: An AR-Pattern .22 Trainer

A rimfire that handles like an AR is a practical way to build habits cheaply. It is not an AR, and knowing exactly where the resemblance ends keeps it useful.

What the M&P15-22 is for

A centerfire AR-15 is expensive to practice with. Ammunition costs add up, and some indoor ranges restrict rifle calibers. A .22 LR rifle that shares the AR's controls lets you work on trigger control, sight alignment, handling and safe procedures at a fraction of the ammunition cost. That is the entire reason the Smith & Wesson M&P15-22 Sport exists.

The listing is for a CA/CO/MD compliant model with 10+1 capacity, a 16.5-inch barrel and a black finish. If you live somewhere that restricts certain configurations, that detail matters. If you do not, other versions of the rifle exist; read the exact specifications on each.

Where it resembles an AR, and where it does not

The honest summary: the rifle trains your hands and eyes, not your shoulder. If you shoot centerfire carbine drills, expect the .22 to teach you the motions and not the recoil.

Our tactical .22 rifle roundup compares this against the GSG-16, SU22 and 10/22 as training options, and SportingRifles' rimfire for training article covers the training argument in more depth.

Compliance and configuration

The listing specifically notes California, Colorado and Maryland compliance and a 10-round magazine. That means the rifle is configured for stricter state rules, and it matters in two ways:

• If your state restricts features or magazine capacity, confirm that this exact model fits its rules before ordering. Laws change and can be complicated; check current statutes or ask a licensed dealer.
• If your state does not restrict them, you may prefer a version without those limits, depending on what you want from the rifle.

Either way, confirm the exact model and magazine details on the listing and the manufacturer's page, and plan for how a firearm will be transferred through a licensed dealer.

Ammunition: the first thing to get right

AR-pattern rimfires are designed around a specific range of ammunition power, which means they can be fussy about what they eat. The usual starting recommendation is high-velocity copper-plated ammunition, because it supplies the energy a blowback action needs and tends to feed smoothly.

For a bulk pairing, the Browning Performance 36gr HP in a 400-round pack is a sensible first purchase. A 400-round quantity covers several magazines and sessions without committing to a case. Our Browning guide explains the load, and the Aguila lineup comparison offers alternatives. A hollow point has a blunter feed shape than a round-nose solid, so if your rifle stumbles, a solid point is the first thing to try instead.

Do not judge the rifle on a single magazine. Run several, with more than one magazine body if you own them, and keep a log. If stoppages follow a specific magazine, retire it; if they follow a specific load, change loads; if they follow neither, the jam troubleshooting checklist walks through the rest.

Optics

An AR-pattern rifle practically begs for an optic. A red dot is a natural fit, and a small variable scope suits longer rimfire distances. Because rimfire sight lines and ranges differ from a centerfire AR's, our rimfire optics roundup is the place to start, and the article on rimfire versus centerfire scopes explains why parallax settings matter at short range.

A rifle used for training should wear the same kind of sight you use on your main rifle, so the hand-and-eye habits carry over. Check mounting options and rail details with S&W before buying a mount.

Cleaning and upkeep

An AR-pattern rimfire looks like it should clean like an AR, and in some respects it does. But a rimfire blowback action is its own animal, and the chamber, bolt and extractor collect wax and carbon quickly. Follow Smith & Wesson's manual for takedown and cleaning, and clean on a schedule rather than waiting for stoppages.

Because this rifle is meant to be a trainer, keeping it reliable matters more than usual. A trainer that jams teaches bad lessons. Number your magazines, keep a cleaning log and replace anything that causes repeated trouble.

Using it for safe-handling practice

One underrated benefit of an AR-style rimfire is safe-handling practice. You can rehearse the safe routine you want on your centerfire rifle: muzzle direction, finger discipline, checking the chamber, ordered clearing. Doing it with a cheap-to-shoot rifle builds the habit without the cost, and it makes the routine automatic when the centerfire comes out.

Who should buy it

Buy it if:

• You own or plan to own an AR-15 and want inexpensive practice.
• You want a plinker with a modern handling style.
• You are comfortable with a period of testing ammunition and magazines.

Skip it if:

• You want a simple, traditional plinker. A 10/22 is simpler. See our 10/22 Sporter vs Takedown comparison.
• You want a precision rimfire. A bolt-action will group tighter.
• You expect it to teach recoil management. It will not.

Before you buy

1. Confirm that this configuration is legal where you live.
2. Check Smith & Wesson's spec sheet for weight and dimensions.
3. Plan on spare magazines and a cleaning kit.
4. Choose a plated high-velocity load and test it across several magazines.
5. Decide what optic you will mount before you pick a mount.

Editorial note: This is an independent editorial overview built from manufacturer specifications and publicly available information. We have not performed hands-on testing of the products discussed, and nothing here is a performance guarantee. Verify specifications, compatibility and legality for your own situation.

Affiliate disclosure: Some links on this page are affiliate links to Ammunition Depot. We may earn a commission if you buy through them, at no extra cost to you. Our editorial choices are not influenced by commissions. Check current price, stock and specifications directly with the retailer.