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RT15 Poly Complete Lower Receiver (Limit 1)

RATTLESNAKE TACTICAL GEAR
130 Reviews
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In stock

SKU
RT15-POLY-CL-A-AD
Regular Price:
$99.99
Special Price:
$49.99

Product Details

The RT15 Poly complete lower features a uniquely lightweight and sturdy design.

This lower receiver is made from a rugged and lightweight polymer material, providing a lightweight and reliable base for your custom AR.

Compatible with any standard mil-spec components, this lower allows you to drop in your favorite AR-15 upper to create a complete rifle. 

  • Complete Lower Receiver
  • Collapsable, 6-position stock
  • Integrated oversized trigger guard
  • Ultra-lightweight
  • Rugged polymer trigger group
  • Extremely tough polymer buffer tube
  • Great for custom AR-15 builds
  • Three-year factory warranty

For marksmen with heavy optics and accessories ranging from bipods to suppressors, every ounce of weight savings can count.

This is especially true if you ever plan to hike with your rifle to hunt or carry in the wilderness.

Tactical shooters who enjoy shorter barrel lengths and smaller optics appreciate the lightweight lower as it allows for quicker handling, and will fatigue your arms and shoulders less when holding the rifle at the ready.

Do yourself a favor and start your next build off by saving precious ounces on the lower receiver, as forged or milled lowers need expensive machining and skeletonization to reduce their weight.

Looking for more AR-15 magazines? Get big savings when on our entire online inventory of low-priced AR15 Mags for sale

*This polymer lower does not need to have its castle nut tightened, torqued, or staked, as it is factory torqued to 6-8 lbs with blue Loctite and will not come loose.

More Information

Category Guns
Condition New
Manufacturer Rattlesnake Tactical
Manufacturer SKU RT15-POLY-CL-A

Reviews (130)

4.8
star star star star
130 Reviews
11% of customers
recommend this product
5 stars
13 (93%)
4 stars
0 (0%)
3 stars
1 (7%)
2 stars
0 (0%)
1 star
0 (0%)
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RT15 Poly Complete Lower Receiver (Limit 1)
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Customer Reviews

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James F
Dec 5, 2025
Verified Buyer
I recommend this product
The included grip is small. Perfect for my wife's ...
Advantages
Low price, fits fine, works fine, light weight
Disadvantages
There are some casting edges that need to be sanded off to make it better
Comment
The included grip is small. Perfect for my wife's hands
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joey
Dec 4, 2025
Verified Buyer
I recommend this product
works great and feels nice
Advantages
product is exactly as described. Great budget lower.
Disadvantages
for the price it is great, no cons for the price you pay.
Comment
works great and feels nice
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Steveco
Dec 2, 2025
Verified Buyer
I recommend this product
A+
Advantages
You absolutely can’t go wrong with these lowers! I personally have 6 in everything from 5.56 to 400 legend and they all perform flawlessly. Fit is perfect, trigger is great. If you like to build your own and have fun these are definitely for you.
Disadvantages
None
Comment
A+
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mu tiger
Sep 7, 2025
Verified Buyer
I recommend this product
Amazing a few here whine about this product as if ...
Advantages
I bought a few because you never know. Put one on a BCA side charger pistol and runs flawlessly. The triggers are better than average. They cycle 55 grain fmj fine. About to buy 5 more before my FFL dealer raises transfer fee. Easy to have a functioning AR for a great price.
Comment
Amazing a few here whine about this product as if they were expecting Daniel Defense quality products. Probably the best buy on the gun market in my lifetime. Less than dinner for two, less than a tank of gas, less than a cheap red dot.
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mu tiger
Sep 7, 2025
Verified Buyer
I recommend this product
Amazing a few here whine about this product as if ...
Advantages
I bought a few because you never know. Put one on a BCA side charger pistol and runs flawlessly. The triggers are better than average. They cycle 55 grain fmj fine. About to buy 5 more before my FFL dealer raises transfer fee. Easy to have a functioning AR for less than 300 dollars.
Comment
Amazing a few here whine about this product as if they were expecting Daniel Defense quality products. Probably the best buy on the gun market in my lifetime. Less than dinner for two, less than a tank of gas, less than a cheap red dot.
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Anthony
Jul 23, 2025
Verified Buyer
I recommend this product
Will be ordering another one in the near future!!
Advantages
Very lightweight!! Built one like it using separate parts and paid more that way than this.
Disadvantages
Not designed for large caliber uppers
Comment
Will be ordering another one in the near future!!
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D.G
May 27, 2025
Verified Buyer
I recommend this product
Very pleased with this lower. So pleased I purchas...
Advantages
Super lightweight and excellent trigger! Zero problems so far cannot beat it for the price period! Bought 3.
Disadvantages
I cannot see any disadvantage to this unit!
Comment
Very pleased with this lower. So pleased I purchased 3 .
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ty
May 1, 2025
Verified Buyer
I recommend this product
Great lower!
Advantages
trigger!
Disadvantages
none so far
Comment
ordered 2, both out of the box 3-3.5lbs! very little take up on trigger
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Zoohead
Jan 30, 2025
Verified Buyer
I recommend this product
YEP
Advantages
Couple hundred rounds and I pushed it kind of hard a few times, and it worked just fine, weight spot on! Going to play with this one and probably buy a couple more. Great product!
Comment
Great lower!
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PigDynasty
Jan 11, 2025
Verified Buyer
I recommend this product
I have had this lower for two years. I use a 350 l...
Advantages
Light weight and works
Comment
I have had this lower for two years. I use a 350 legend upper. Great lower.
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California Prop 65 Warning  WARNING for California Residents WARNING: Discharging firearms in poorly ventilated areas, cleaning firearms, or handling ammunition may result in exposure to lead and other substances known to the State of California to cause birth defects, reproductive harm, and other serious physical injury. Have adequate ventilation at all times. Wash hands thoroughly after exposure. For more information go to www.p65warnings.ca.gov/.