Why the 5" ARP Kit Is the Smart, Affordable Choice — Now with Easy Links to Shop

Want a compact AR pistol that won’t cost a fortune or sacrifice performance? Our 5" ARP kit is built for shooters who want maximum maneuverability in a minimal package. At AR15-Overstock, we offer high-quality 5" ARP kits at deep discounts — and we make it easy to pair them with compatible parts from our other budget-friendly collections.

Shop all AR pistol kits → AR-15 Pistol Kits

What is a 5" ARP Kit?

A 5" ARP kit is a short-barrel upper parts package designed for ultra-compact AR pistol builds. These kits typically include a barreled upper, properly matched gas system, bolt carrier group (BCG) option, charging handle, and an M-LOK handguard — everything you need to finish a compact AR pistol except the stripped lower receiver.

If you want a small setup for home defense, close-quarters practice, or an agile range pistol, the 5" ARP kit is a top pick. Pair it with our other affordable parts for a complete, reliable build: 5.56 Pistol Kits • 9mm Pistol Kits

Key Benefits of a 5" ARP Kit

1. Compact Size, Maximum Mobility

Five inches of barrel length gives you exceptional maneuverability — perfect for tight spaces, vehicle carry, or fast transitions. If you want an even more balanced compact build, check our slightly longer options in the 5.56 Pistol Kits collection.

2. Lightweight and Nimble

A shorter barrel reduces front weight and improves handling. That makes quick target acquisition and movement easier on the range and in tactical drills.

3. Loads of Customization

Most 5" ARP kits use M-LOK handguards so you can quickly add lights, grips, or handstops. Need magazines, sights, or stabilizers? We’ve got compatible components across the site — and budget options in our Blemished & Clearance Kits section.

4. Real-World Performance

Modern 5" kits are designed with tuned gas systems and quality BCGs so they run reliably when built correctly. Pair the kit with the right buffer setup and ammo for consistent cycling and minimal hassle.

Why Buy Your 5" ARP Kit from AR15-Overstock?

• Big savings, no middleman. We cut retail markup so you get quality parts for less.

• Trusted components. Our kits are sourced from reputable manufacturers and tested for real-world use.

• Choices for every budget. From brand-new 5" kits to discounted blemished units, we’ve options that fit both new builders and experienced shooters. Browse our deals: Blemished Kits • 9mm Pistol Kits

What to Check Before Buying (Quick Checklist)

• Included parts: Ensure the kit lists a BCG, charging handle, barrel, and handguard.

• Gas system: Confirm the gas system length matches the barrel for reliable cycling.

• Compatibility: Make sure the kit pairs with your lower receiver and chosen caliber.

• Legal compliance: Verify your configuration follows federal and state laws in your area.

Ready to Build? Links to Shop

• Shop the 5" ARP kits → 5" ARP Kits

• Browse compact 5.56 options → 5.56 Pistol Kits

• Prefer 9mm? See budget 9mm kits → 9mm Pistol Kits

• Hunting bargains? Check blemished & clearance → Blemished Kits

• View all pistol kits → AR-15 Pistol Kits

Inventory moves fast — if you want a compact, capable AR pistol without paying retail prices, now’s the time to grab a 5" ARP kit and build smart.