Outfitters Score™
Good
D.S. Arms scores as a unrated build with fair 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
To offer consumers a purpose-built precision rifle similar to the Designated Marksman Rifles used by today's military, DS Arms teamed up with Knight's Armament to put together a solid, heavy-barrel build. The result was the DS Arms ZM4 Service Series A4 Rifle. The heart of the DS Arms ZM4 Service Series A4 Rifle is the barrel, which features an HBAR profile and a rifle-length gas system, all designed to provide reliability and accuracy for a perfect shot, every time. To guard against corrosion, the barrels and chambers of each rifle are chrome-lined. Chambered in 5.56 NATO Length: 36 inches Weight: 6.5 pounds Includes one 30-round magazine Knig Mfg: D.S. Arms
Features
Chrome Lined
Full Specifications
Overview
| Brand | D.S. Arms |
| Model | ZM4RCR20-SSA4-A |
| SKU | 100033152 |
| Rifle Type | semi auto |
| Platform | AR15 |
| Caliber | 5.56 NATO |
| Chamber | 5.56 NATO |
Barrel
| Barrel Finish | chrome-lined |
| Barrel Profile | heavy |
Gas System
| Gas System Length | rifle |
Receiver
| Upper Type | flat-top |
| Forward Assist | No |
| Dust Cover | No |
Handguard
| Free Float | No |
Muzzle
| Suppressor Ready | No |
Sights & Optics
| Optic Ready | No |
Dimensions & Weight
| Weight | 6.5 lbs |
| Magazine Capacity | 30 rounds |
Compliance
| CA Compliant | No |
| Classification | Rifle |
| NFA Item | No |
What's Included (Complete Rifle)
This is a complete, ready-to-shoot firearm.
Upper Receiver
flat-top
Lower Receiver
Barrel
Bolt Carrier Group
Handguard
Stock
Grip
Trigger
Muzzle Device
Charging Handle
Gas Block
Gas Tube
rifle-length
Buffer Tube
Backup Iron Sights
Optic
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Build Guide
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State Check
This rifle has NFA or magazine considerations →
Ar15/Zm4 5.56 Knights Armament Upgrade - Ar15/Zm4 Service Series 5.56
ZM4RCR20-SSA4-A
Purpose-Built Precision
Across 1 retailer
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