
Outfitters Score™
Excellent
Ruger scores as a value build with excellent value pricing and a bare-bones configuration.
Our proprietary rating combines brand tier, price percentile within the caliber, feature completeness, barrel versatility, retailer availability, caliber practicality, and use-case fit.
Description
Simple, rugged, Garand-style action with breech bolt locking system, a fixed-piston gas system and self-cleaning moving gas cylinder gives unparalleled reliability under harsh operating conditions. Cold hammer-forged barrel results in ultra-precise rifling that provides exceptional accuracy and longevity. Integral scope mounts, machined directly on the solid steel receiver, provide a stable mounting surface for included scope rings, eliminating a potential source of looseness and inaccuracy in the field. Accurate sighting system with ghost ring rear aperture sight and a non-glare, protected blade front sight. Receiver is drilled and tapped for mounting the included Pic Mfg: Ruger
Full Specifications
Overview
| Brand | Ruger |
| Model | 5855 |
| SKU | 430110039 |
| Rifle Type | semi auto |
| Caliber | 5.56 NATO |
| Chamber | 5.56 NATO |
| UPC | 736676058556 |
Gas System
| Operating System | piston |
Receiver
| Receiver Type | forged |
| Forward Assist | No |
| Dust Cover | No |
Handguard
| Free Float | No |
Muzzle
| Suppressor Ready | No |
Sights & Optics
| Optic Ready | No |
Dimensions & Weight
| Magazine Capacity | 5 rounds |
Finish
| Finish | black |
Compliance
| CA Compliant | No |
| Classification | Rifle |
| NFA Item | No |
What's Included (Complete Rifle)
This is a complete, ready-to-shoot firearm.
Upper Receiver
Lower Receiver
forged
Barrel
Bolt Carrier Group
piston
Handguard
Stock
Grip
Trigger
Muzzle Device
Charging Handle
Gas Block
Gas Tube
Buffer Tube
Backup Iron Sights
Optic
Compare Similar Rifles

Diamondback
DB15 5.56mm 7" Olive Drab Green Cerakote Heavy Barrel 6" M-Lok Handguard 7075-T6 Aluminum SBA3 Brace Magpul MOE Grip

Diamondback Firearms
Diamondback DB15 5.56mm NATO 16in OD Green Cerakote Semi Automatic Modern Sporting Rifle - 10+1 Rounds

Smith & Wesson
M&P 15 Sport Iii 5.56x45 Nato Semi-Auto Rifle - M&P 15 Sport Iii 5.56x45 Nato 16" Bbl (1)30rd Mag Black

Great
Lakes GL-15 5.56/223/223 Wylde, 16" Barrel, ORC Pursuit Green Camo, Nitride 30rd

Core15
Scout 5.56/.223, 16" Barrel, M-LOK, Nitride BCG, Black, 30rd
Related Guides & Reviews

First Time AR-15 Buyer: What to Know Before You Start
Bottom Line Up Front Your first AR-15 rifle should be a quality complete rifle from a reputable manufacturer in the...

Best AR-15 for Beginners: Complete Rifles
Starting your journey into the AR-15 platform can feel overwhelming. With hundreds of manufacturers and thousands of...
One of the largest US firearms manufacturers. The AR-556 line is a solid, no-frills entry point into the AR world.
View brand profile →Mini-14(R) Ranch 5.56 Nato Semi-Auto Rifle - Mini-14 Ranch 5.56x45 Nato 18.5" Bbl (2)5rd Mags Blued/Black
5855
Across 1 retailer
Compare Prices
Build It Yourself
Want to customize? Build similar specs from individual parts.
State Legal Check
Prices are fetched from affiliate partners. AR15 Outfitters may earn a commission on purchases made through links on this site. This does not affect pricing or our recommendations.