+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

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 FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll 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

Reviews & Ratings for Watchtower Firearms Gun Builder Kit — 8 reviews

(8 reviews)
Watchtower Firearms Gun Builder Kit
Watchtower Firearms Gun Builder Kit
$84.99 $79.99 Save $5.00
View Product
Write a Review
Compare (0)
1 item has been added
Add at least two items to compare
Most Helpful Positive Review Gun Builder Parts Kit
Great kit. Everything seems to be good quality parts and the parts were separated individually and named. Being a newbie to building ARs this was a huge help. The biggest reason I chose the F1 kit was because it was one of the only kits I could find with a abi-safety selector and I didn't need the...
Read More...
Most Helpful Negative Review Extremely Finnicky and Dangerous Safety Selector
There's nothing special about this lower parts kit. It's basically the same as a CMMG or any standard LPK with the exception of the ambidextrous safety selector. You're basically paying 1.5-2x the price of a standard LPK for the ambi safety upgrade. Ironically, the safety was the only problematic pa...
Read More...
Show
Sort by
Filter by

great looking safety

by Fresh, Verified Owner from UT, United States Written on February 1, 2025
Safety is nice but the rest of the kit is plain Jane.
Pros:
  • safety
Cons:
  • everything else
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Great parts kit

by Kelson, from WA, United States Written on February 23, 2022
Once you open the package there is labeling inside identifying what each part is.
The coating on the parts seems pretty durable and really like the feel of the safety and the extended takedown pins
I put these into an F-1 receiver set and everything fit perfectly
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Quality Parts

by Jason, from WA, United States Written on July 19, 2020
F1 is a quality company. Which is shown in there attention to detail. I chose this kit because I had a F1 lower. They separate all the parts out individually and named them. This is huge for the newer individual to gun building but also comes in handy to the seasoned veteran. The fit was perfect and everything was high quality as to be expected with F1.
Pros:
  • Price
  • Quality
  • Fit
Cons:
  • None
Best Used for:
  • F1 lowers
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No
Share

Awesome and official

by AtheBuilder, from CT, United States Written on August 6, 2018
Ordered product came in as described and shown in the picture. Shopped around and opticsplanet was the only place I found that had in stock and a price you can’t beat. Shipping was fast and free which you can’t beat. Great deal all around, optics has a repeating customer.
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No
Share

F1 firearms gun builder kit

by erics, Verified Owner from RI, United States Written on April 21, 2018
F1 firearms gun builder kit.. Great product from a great company nothing bad can be said about f1 good fit and finish. Price was great for this product . So if you need a lower parts kit don’t hesitate and buy one of the best f1 firearms.
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No
Share

F1 firearms lpk

by Erics, from RI, United States Written on February 12, 2018
F1 firearms lower parts kit. If your looking for a top quality lower parts kit here it is fit and finish on parts are great.. Optics planet customer service and fast. Free shipping made it a great buy...
Would recommend: Yes
1 of 3 found the following review helpful.
Was it helpful to you? Yes | No
Share
There are no reviews that match your criteria. Would you like to review this product?