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Daniel Defense M4 URG, V3 Mid-Length With DDM4 9.0 Rail Magpul AR-15 PMAG 30 Round Capacity 5.56x45 M3 Magazine No Window, Black Complete 300 AAC BLACKOUT Upper Receiver Assembly 16"
MAGPUL PMAG® 40 AR/M4 GEN M3, 5.56x45 Magazine - AR15/M16, 40 ROUND CAPACITY, BLACK MAGPUL EMAG 30 MagLevel, 5.56x45 Magazine - AR15/M16, 30 ROUND CAPACITY, BLACK

Why Choose ?

Our website shows real time inventory, never wonder if an item is actually available.

Most orders ship within 1 business day (excluding weekends and USPS holidays) and arrive 1-3 business days later so we can get parts in your hands faster than most dealers can even process your order.

As a well established dealer on we have plenty of customer feedback.  Click here to check it out.

We do not export!

Huge Selection of AR15, M16 & M4 Parts and Accessories

Welcome to Operation Parts. Here you will find only the highest quality tactical gear and gun accessories for rifles, carbines, and submachine guns. We carry rifle handguards, rifle scope mounts and rings and much more from trusted manufacturers such as Advanced Armament (AAC), Aimpoint, A.R.M.S., Blue Force Gear, Black Dog Machine, Brownell's, Buffer Technologies, Ciener, Daniel Defense, Eagle Industries, EOTech, Ergo, Falcon Industries, Gear Sector, Geissele, GG&G, Grip Pod, Harris Engineering, H&K, Insight Technologies, Knight's Armament (KAC), Lewis Machine & Tool (LMT), Magpul, PRI-Precision Reflex, Redi-Mag (Boonie Packer), Rock River Arms, Samson, Specter Gear, Streamlight, SureFire, TangoDown, Target Master, Trijicon, Troy Industries, Viking Tactics, Vltor, Yankee Hill Machine (YHM) and many more.

View customer feedback from forums HERE

Be sure to contact us for any products that you don't see, we have a huge selection of AR15 parts and M16 / M4 parts including AR15 stocks and many other products available. Our goal is to stock the quality parts that you need to customize your AR-15, M4, M16, or MP5 while offering them at a very competitive price.

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Today's Super Deal!

Daniel Defense M4 16" URG, V5 LW With Omega X 12.0

Our Price: $1,079.00
Sale Price: $899.95
Daniel Defense M4 16" URG, V5 Lightweight With Omega X 12.0 Rail
The Daniel Defense M4 URG, V5 LW is perfectly adapted for end-users who plan on attaching the ever popular red dot, holographic or magnified optics to their firearm.

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New Products

SOC-C™ Modular Padded Belt Kit With Inner Belt And Suspenders, Coyote Brown
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Helium Whisper Ten Speed™ Single M4 Magazine Pouch, Coyote Brown
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Helium Whisper Ten Speed™ Double M4 Magazine Pouch, Coyote Brown
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Operation Parts
PO Box 52
Linden, MI 48451 USA
P: (810) 513-5093
F: (866) 796-5182

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