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RTAC RT15 223/5.56 NATO 16" 30+1 Lightweight - Black

RATTLESNAKE TACTICAL GEAR
14 Reviews
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In stock

SKU
RT15-POLY-556C
Regular Price:
$574.99
Special Price:
$299.99

Product Details

The RT-15 features an advanced metal-reinforced polymer upper receiver, paired with RTAC's poly lower for a reliable and extremely lightweight rifle. The polymer lower on this RT-15 is rugged and light, making it the perfect rifle foundation. A lighter rifle makes handling and aiming easier for any and all shooters regardless of experience level. With a full magazine loaded, optics, lights, and muzzle device, custom AR-15s can become excessively front-heavy. Get ahead of that problem with the lightweight receiver set in this RT-15!

  • Metal-reinforced polymer upper receiver, lightweight and tough
  • 1:8 twist barrel
  • Lightweight 10" M-LOK handguard
  • Full Bolt Carrier Group and charging handle
  • Polymer lower w/ oversized trigger-guard
  • 6-position collapsible stock
  • Magpul PMAG

When you aim and fire your RT-15, the major difference you will notice will be the ease of holding the weapon out and level due to the weight savings. This advantage is critical when taking precision shots from a standing position. The lightweight RT15 provides a reduction in sight picture sway and an increase in the duration of time that you can maintain sight picture on target, as your shoulders and arms will not fatigue as quickly compared to using other, heavier, 16" barrel AR-15s. This allows more range time, and more precise shots on target before losing that edge. The RT-15 is an easy-to-use and reliable rifle that is fit for the beginner or the advanced AR-15 collector looking for something new. 

Out of the box, this rifle can be loaded up and equipped with your favorite irons or optics, and taken to the range. Ships with an included 30-round Magpul PMAG magazine, Cable-lock for storage, and a manual. 

Make sure to add some additional AR-15 magazines to your order, you can never have too many!

Interested in building your own custom AR-15 off of an RTAC Poly Lower? We have those available here!

This polymer lower does not need to have its castle nuts tightened, torqued, or staked, as it is factory torqued with blue Loctite and will not come loose. 

More Information

Category Guns
Manufacturer SKU RT15-POLY-556C
Condition New
Suggested Use Practice, Self Defense, Hunting / Varmint, Competition / Sport
Model RT15-POLY-556C
Capacity 30
Handgun or Long Gun Long Gun
Action Semi-Auto
Action Semi-Automatic
Barrel Length 16"
Barrel Color Black
Color Black
Finish Black
Manufacturer Rattlesnake Tactical
Rail M-Lok 10"
Receiver Material Metal-Reinforced Polymer
Stock Color Black
Stock Type Adjustable
Twist 1:8 twist barrel
Restrictions State restrictions do not allow shipping of this product to WA
Caliber 223/5.56

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Reviews (14)

4.9
star star star star
14 Reviews
57% of customers
recommend this product
5 stars
8 (100%)
4 stars
0 (0%)
3 stars
0 (0%)
2 stars
0 (0%)
1 star
0 (0%)
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RTAC RT15 223/5.56 NATO 16" 30+1 Lightweight - Black
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Customer Reviews

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Chris
Apr 26, 2025
I recommend this product
I ordered 7 of these and they work awesome! Put mo...
I ordered 7 of these and they work awesome! Put most of my coworkers on them as well!
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Tricky Rick
Apr 23, 2025
Verified Buyer
I recommend this product
Look past the poly. This, at least for me, has bee...
Advantages
Lite weight, fits me to a T.
Disadvantages
None worth mentioning
Comment
Look past the poly. This, at least for me, has been nothing but reliable. I have put over a thousand rounds down range in 2 different trips to the range. Absolutely no issues period. All I have done is put a 2 Moa red dot on it. After heating up I have had no issues with losing zero. Looking at maybe getting another.
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Slammer
Mar 26, 2025
Verified Buyer
I recommend this product
I would recommend this rifle an I would purchase ...
Advantages
This is a good shooting rifle and is lightweight. I put a red dot on top and offset flip up iron sights… all sighted in and functions well.
Comment
I would recommend this rifle and I would purchase it again.
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TJ
Feb 13, 2025
Verified Buyer
I recommend this product
Absolutelyl .........................................
Advantages
Just purchased the AR. Was not for sure if I was going to like the feel of the poly lower but actually love it. I have run about 3 30 round mags through it, put some of the flip up sights on the front and back along with a vortex red dot. Can use both sights without having to buy the offset sight mounts . Still might just so I do not have to open the scope caps if I don’t want to. The gun runs great and I am thinking about doing a couple of the lowers to make the 300 blackout, maybe have a spare. The weight is great on this gun and would highly recommend this to any shooter. Experienced or beginner.
Disadvantages
None
Comment
Absolutely a great gun to have, get 2 if possible.
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Dave
Dec 7, 2024
I recommend this product
Overall a definite great buy!
Advantages
Light weight. Shoots well. Love the feel of the fore grip.
Disadvantages
Stock could be a little more refined. Seemed slightly rough to the touch.
Comment
Overall a definite great buy!
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ferd
Nov 19, 2024
I recommend this product
It's been a little a little over a year since purc...
Advantages
lite weight, well balanced.
Disadvantages
Pretty rattly when first received, much better now with a little detailing.
Comment
It's been a little a little over a year since purchased with well over a thousand rounds ran without a glitch makes it is a winner in my book. Have done minor mods, attachments and work to it to personalize and still well under a grand.
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jb
Oct 25, 2024
Verified Buyer
I recommend this product
You can not find a better buy
Advantages
First time at the range - over 100 rounds - ran perfect - Awesome !
Disadvantages
Al ittle more of a kick than my other ARs but this one is a lot lighter .
Comment
You can not find a better buy
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Ryle
Jan 16, 2024
Verified Buyer
I recommend this product
Well organized store.
Advantages
Lightweight. Almost 2 lbs less than a standard A2 version. Nice balance
Disadvantages
None
Comment
Well organized store. Polite knowledgeable people.
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Tarryne Flowers
Dec 10, 2022
Verified Buyer
LOVE IT
I purchased this firearm at a great price. Not too fond of the charging handle, buttstock, or the magazine that comes with it, but those are easy upgrades. I would definitely purchase this again.
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Fred Clark
May 14, 2022
Verified Buyer
Love the AR-15. Will buy
Love the AR-15. Will buy more products from you. The price was perfect. Keep up the good work. Have let other people about your web site.:+1:
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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/.