When it comes to compact AR builds, many shooters debate between going ultra-short with a 4.75" barrel or sticking with something a little longer, like 7.5". But for builders who want the best of both worlds, the 5 Inch AR Pistol Kit is hard to beat. At AR15-Overstock.com, we stock 5" kits that balance size, reliability, and performance — making them one of our most popular pistol configurations.

What Makes a 5 Inch AR Pistol Kit Different?

A 5 Inch AR Pistol Kit is designed to deliver compact handling without giving up too much velocity or reliability. Here’s why it stands out:

• Compact Size — Small enough for tight maneuvering and easy transport.

• Improved Velocity — More speed than a 4.75", but still very compact.

• Gas System Balance — Tuned for better cycling compared to ultra-short barrels.

• Customization Ready — Free-float M-LOK handguards and threaded muzzle devices let you add the accessories you want.

What’s Inside the Kit?

Every 5" AR pistol kit at AR15-Overstock is carefully selected to give you quality parts at the best price. Typical kits include:

• 5 Inch Barrel in 5.56 NATO or .300 BLK

• Flat-Top Upper Receiver for optics and sights

• Free-Float Handguard (M-LOK compatible)

• Micro Gas System & Gas Block

• BCG and Charging Handle (included in most kits)

• Threaded Muzzle Device or protector

Just add your stripped lower receiver and you’ll be ready to finish your build.

Why Builders Choose the 5" Setup

Many shooters see the 5 Inch AR Pistol Kit as the “sweet spot” in micro pistol builds. Here’s why:

• It’s more reliable than some ultra-short options.

• It offers better ballistics than 4" barrels.

• It keeps the AR pistol lightweight and compact.

• It’s budget-friendly with bundled parts and free shipping over $49.

For anyone wanting a compact pistol that’s still practical for range use or personal defense setups, the 5" length makes sense.

Shop 5 Inch AR Pistol Kits at AR15-Overstock

At AR15-Overstock.com, we specialize in AR pistol kits, uppers, and build parts — and the 5 Inch AR Pistol Kit is one of our top sellers. We back every kit with competitive pricing and free shipping, so you can build with confidence and save money at the same time.

Explore our collection of 5 Inch AR Pistol Kits and lock in your build today.

Compact. Reliable. Built your way.