Daniel Defense

Daniel Defense RIS II M4A1 Complete Upper 14.5" CALIFORNIA LEGAL - .223/5.56 - FDE

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MSRP: $1,743.00
$1,499.99
(You save $243.01 )
When required by law, the cost to make this product CA legal is included in the price above.

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SKU:
4951
UPC:
815604016612
Manufacturer Part #:
23-004-13150
Caliber:
.223/5.56
Barrel:
14.5 in (16 in w/pinned muzzle device), 1:7 Twist
Gas System:
Carbine-Length
Color:
Flat Dark Earth/Black
Product Type:
Upper Receiver

Shipping to California

  • Status: Complete upper with a barrel. Not a serialized firearm, but we ship it to a licensed dealer only.
  • Delivery: Ships to WBT in La Mesa or to the California gun store you choose; select your dealer at checkout. Not shipped to home addresses.
  • Learn more: Featureless or fixed magazine: which fits your build · FAQ

About this upper

Daniel Defense RIS II M4A1 Complete Upper 14.5" is an upper receiver chambered in .223/5.56 with a 14.5" barrel. Finish: Flat Dark Earth/Black.

Manufacturer details

 

** The Daniel Defense M4A1 upper pictured is California legal as is. CA compliant parts or modification are the buyer's responsibility when built into firearm. **

Specifications

  • Brand: Daniel Defense
  • Caliber: .223/5.56
  • Barrel: 14.5 in (16 in w/pinned muzzle device), 1:7 Twist
  • Finish / color: Flat Dark Earth/Black
  • Manufacturer part #: 23-004-13150
  • UPC: 815604016612

Buying from WBT Guns

  • Delivery: Complete uppers ship to a licensed dealer only. Free pickup at our La Mesa store, or select the California gun store you want it sent to at checkout.
  • Payment: Pay in full, put 50% down with the balance due in 14 days, or finance with Credova.
  • Questions: Call (619) 667-9453 or email sales@wbtguns.com. FAQ

WBT Guns is family-owned in La Mesa, California, and has shipped parts and receivers to California buyers since 2012.

A note on accuracy. We work hard to keep every listing correct, but specifications, images and compliance details come from many sources and can contain errors or change without notice. Images may show a configuration that is not California-legal. If a detail on this page matters to your decision, call us and we will confirm it against the actual firearm before you order. The compliance information here is general in nature and is not legal advice; California and local laws change, and the configuration described is confirmed at the time of sale. All sales are subject to applicable federal, state and local law and to the buyer's eligibility to purchase.

The Daniel Defense M4A1 Upper Receiver Group features the M4A1 Rail Interface System (RIS II), which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005. This two-piece, free-floating rail system allows the mounting of devices like a M203 grenade launcher without influencing the barrels harmonics, eliminating problems like wandering point of impact that plagued other mounting designs. The two-piece design also allows for partial disassembly of the rail to aid in cleaning around barrel without completely removing the entire rail system. The weight of anything attached to the RISII rail system is fully supported by a sturdy bolt-up system, using 6 grade 8 bolts, leaving the barrel completely free floating for best possible accuracy and dependability. The M4A1 features a 14.5" Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Improved Flash Suppressor to meet the NFA required 16" length. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.

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