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 MK12 SPR 18'' 5.56MM NATO 1-7 12'' DDM4 Rail Upper is an upper receiver chambered in .223/5.56 with an 18" barrel. Finish: Black.
Manufacturer details
The MK12 Upper Receiver from Daniel Defense is built around an 18" stainless steel barrel, engineered with a rifle-length direct impingement gas system and utilizing the MK12 gas block, which is built to Crane Specifications for USSOCOM.
The Daniel Defense MK12 Upper Receiver features a rugged hard coat anodized Mil-Spec aluminum upper with a hammer forged stainless steel 18" barrel in a 1-7 twist with a MK12 profile.
The MK12 Upper Receiver from Daniel Defense offers rugged dependability and precision accuracy in a complete package.
Features
- MK12 low profile gas block machined from 416 hardened steel, rifle length
- Daniel Defense 17-4 PH stainless steel flash suppressor
- Chrome Lined M16 profile bolt carrier group
- 6061-T6 hard coat anodized 12" Daniel Defense DDM4 Rail
Specifications
- Brand: Daniel Defense
- Caliber: .223/5.56
- Barrel: 18 in
- Finish / color: Black
- Fits: AR-15
- Manufacturer part #: 23-142-10035
- UPC: 815604016735
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.
