+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Best 2025 Primary Weapons Systems AR15 Upper Receivers Reviews by Verified Customers — 13 products / 34 models

Our Primary Weapons Systems AR15 Upper Receivers Reviews happen to be a great way to get a neutral viewpoint on Primary Weapons Systems AR15 Upper Receivers. Consumer reviews are the best way to evaluate many AR15 Upper Receivers from Primary Weapons Systems quick and simple. These consumer written testimonials include consumer ratings, recommendations and feedback. Browse the advantages and disadvantages from those who have experience and knowledge using Primary Weapons Systems AR15 Upper Receivers. We now have all the best Primary Weapons Systems products at OpticsPlanet like, Primary Weapons Systems AR15 Upper Receivers. We recognize the worth of getting the knowledge and an overall understanding of something you get, so take the time to read what people just like you are saying about all of our leading Primary Weapons Systems AR15 Upper Receivers in our on-line reviews. Rest assured, when you shop at OpticsPlanet.com, your experience will be nothing short of excellent.image

13 Products in Primary Weapons Systems AR15 Upper Receivers Reviews

reset
Sort by
Most Popular +
  • Most Popular
  • Price: Low to High
  • Price: High to Low
  • Avg. Rating: High to Low
  • Price Per Count: Low to High
  • Price Per Count: High to Low
  • Most Reviewed First
  • Savings % Off
  • Bonus Bucks %: High to Low
  • Bonus Bucks %: Low to High
  • Newest First
  • A to Z
  • Z to A
Show
60 +
  • 20
  • 60
  • 120
  • 240
Image of Primary Weapons Systems MK109 MOD 2-M, .300 AAC Blackout, 9.75 inch Upper Receiver Primary Weapons Systems MK109 MOD 2-M, .300 AAC Blackout, 9.75 inch Upper Receiver (1) List: $1,399.95 (Save $100.00) $1,299.95
Image of Primary Weapons Systems MK111 MOD2-M, .223 Wylde, 11.85 in Upper Receiver Primary Weapons Systems MK111 MOD2-M, .223 Wylde, 11.85 in Upper Receiver (5) List: $1,399.95 (Save $100.00) $1,299.95 Best Rated
Image of Primary Weapons Systems MK111 MOD1-M .223 Wylde, 11.85in bbl Upper Receiver Primary Weapons Systems MK111 MOD1-M .223 Wylde, 11.85in bbl Upper Receiver (4) List: $1,129.95 (Save $80.00) $1,049.95
Image of Primary Weapons Systems MK114 MOD 2-M, .223 Wylde, 14.5in Upper Receiver 2 models Primary Weapons Systems MK114 MOD 2-M, .223 Wylde, 14.5in Upper Receiver (2) List: $1,399.95 (Save $100.00) $1,299.95
Image of Primary Weapons Systems MK116 MOD1-M 16 inch .223 Wylde Upper Receiver Primary Weapons Systems MK116 MOD1-M 16 inch .223 Wylde Upper Receiver (4) List: $1,129.95 (Save $80.00) $1,049.95
Image of Primary Weapons Systems MK114 MOD 1-M .223 Wylde, 14.5in bbl Upper Receiver Primary Weapons Systems MK114 MOD 1-M .223 Wylde, 14.5in bbl Upper Receiver (6) List: $1,129.95 (Save $80.00) $1,049.95 Best Rated
Image of Primary Weapons Systems MK109 MOD1-M 9.75-inch Upper Receiver Primary Weapons Systems MK109 MOD1-M 9.75-inch Upper Receiver (1) List: $1,129.95 (Save $80.00) $1,049.95
Image of Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver (5) List: $1,399.95 (Save $100.00) $1,299.95 Best Rated
Image of Primary Weapons Systems MK1 MOD 2 Upper Receiver Primary Weapons Systems MK1 MOD 2 Upper Receiver (2) List: $1,349.95 (Save $50.00) $1,299.95
Image of Primary Weapons Systems MK1 MOD 1-P Upper Receiver Primary Weapons Systems MK1 MOD 1-P Upper Receiver (3) Currently Unavailable
Image of Primary Weapons Systems MK107 MOD 2-M 7.75in .223 Wylde Upper Receiver Primary Weapons Systems MK107 MOD 2-M 7.75in .223 Wylde Upper Receiver (1) Currently Unavailable
Image of Primary Weapons Systems MK116 PRO 16 inch Upper Receiver Primary Weapons Systems MK116 PRO 16 inch Upper Receiver (2) Currently Unavailable
Image of Primary Weapons Systems MK111 Pro 11.85in Upper Receiver Primary Weapons Systems MK111 Pro 11.85in Upper Receiver (2) Currently Unavailable
reset
Show
60 +
  • 20
  • 60
  • 120
  • 240

Filter by:

Unfortunately, the item(s) selected is out of stock. Please update your specifications to see more results.

Deals

reset

Categories

reset

Brands

reset
Price
reset
From $
—
To $

    Made in USA

    reset

    Related Links

    Compare (0)
    1 item has been added
    Add at least two items to compare