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If you've ever wondered, "What's the best suppressor-compatible handguard for my AR-15?" or are ready to upgrade your AR-15, then read on! Our top-selling Samson Evolution® Series features a free-floating AR-15 rail system. Both lightweight and durable, the Samson Evolution Series offers the perfect upgrade for 3-Gun competition shooting, law enforcement and military personnel or weekend enthusiasts. Accessory Picatinny rails can be added or removed at any of 7 positions around the rail and any place along the length of the tube. The suppressor-friendly Evolution Rail also accommodates most piston systems.
**Inside diameter 1.56" to accept most standard-diameter suppressors. **Please verify the outer diameter of your suppressor before ordering**
Standard Evolution Series Includes: Thermal bushings, Two (2) 2" accessory rail kits, One (1) 4" accessory rail kit and wrenches. Does NOT include a barrel nut (compatible with any MIL-SPEC barrel nut).
KeyMod™ versions of the Evolution® Series do not include accessory rails.
Features:
- Free-float
- Thermal bushings clip to any Mil-spec barrel nut
- Relieved for most gas piston systems
- No need to remove front sight base
- Rail includes integrated anti-rotation tabs
- 1913 Picatinny Mil-spec
- Precision laser engraving
- Forms continuous top rail
- Made in New Hampshire USA
- Material: 6061-T6 aluminum
- Finish: Black MIL-A-8625 type III class 2 anodizing
| Model | Length (in) | Attachment | Gas System Length | Weight (oz) | ID (in) | OD (in) |
| EVO 7 | 7.00 | Evolution | Carbine | 7.90 | 1.56 | 1.80 |
| EVO 7.6 | 7.60 | Evolution | Low Profile Gas Block | 8.20 | 1.56 | 1.80 |
| EVO 9 | 9.00 | Evolution | Mid | 9.30 | 1.56 | 1.80 |
| EVO 10 | 10.00 | Evolution | Low Profile Gas Block | 10.50 | 1.56 | 1.80 |
| EVO 11 | 11.00 | Evolution | Low Profile Gas Block | 10.50 | 1.56 | 1.80 |
| EVO 12.37 | 12.37 | Evolution | Rifle | 11.50 | 1.56 | 1.80 |
| EVO 15 | 15.00 | Evolution | Low Profile Gas Block | 13.40 | 1.56 | 1.80 |
| EVO-KM-7 | 7.00 | KeyMod | Carbine | 7.30 | 1.56 | 1.80 |
| EVO-KM-7.6 | 7.60 | KeyMod | Low Profile Gas Block |
7.90 | 1.56 | 1.80 |
| EVO-KM-9 | 9.00 | KeyMod | Mid | 8.70 | 1.56 | 1.80 |
| EVO-KM-10 | 10.00 | KeyMod | Low Profile Gas Block |
9.30 | 1.56 | 1.80 |
| EVO-KM-11 | 11.00 | KeyMod | Low Profile Gas Block |
9.90 | 1.56 | 1.80 |
| EVO-KM-12.37 | 12.37 | KeyMod | Rifle | 10.90 | 1.56 | 1.80 |
| EVO-KM-15 | 15.00 | KeyMod | Low Profile Gas Block |
12.80 | 1.56 | 1.80 |
Customer Ratings & Reviews
Ratings Snapshot
out of 5
5
(6)
4
(0)
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2
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1
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Would recommend this product.
100%
out of 5
5
(6)
4
(0)
3
(0)
2
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1
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Would recommend this product.
100%
6 Total Reviews
Great handguard for hunting.
Red Head Fred
Location: Missouri
Date: March 13, 2025
I really like these handguards because of the smooth no snag profile. You can add an attachment point almost anywhere. The bipod mount works really with a Harris bipod. Just ordered my third.
Recommended
Like a ROCK
Jeff
Location: TN
Date: January 11, 2023
Bought my 15" Evo rail when they first hit the market. After years of use, I've never looked back! Still like a rock after all these years. Great rail!
Recommended
Only handguard I will use
Bob
Location: Missouri
Date: March 20, 2022
I have put Samson Evolution hand guards on all of my Ar15's from 13" to 7". They aren't so skinny that they are uncomfortable and fit my hand perfectly. The best thing is that you don't have to buy a brand specific barrel nut but can use the standard Milspec nut.
Recommended
Really Impressed
IP DAILY
Location: PA
Date: October 1, 2020
I just received my new 15in Evolution handguard. The installation was very straight forward. Slid right over my low profile Adams Arms Piston system. The workmanship is remarkable, The handguard feels really good in your hand, however it's a little wide. The inclusion of the aluminum accessory rails is a nice touch. I went to the range today and placed over 100 rounds down range with my lead delivery system. Not one issue the handgaurd stayed put. If you are running a piston system this is a great addition. You will not be disappointed its a quality piece.
Recommended
10 inch evolution
Mike T.
Location: Merica!!!
Date: August 18, 2020
I received this hand guard in a timely fashion and am very impressed with the fit and finish of it. It seems very strong but light weight. I will order many more for all of my builds. Customer service was on point to. Easy ordering fast shipping and a great product what more can be asked for? Oh yea they beat all of the competition in price to. Thanks guys:) Mike T.
Recommended
10" Evo Rail
Larry
Location: Maine
Date: August 1, 2019
I loved my 12" Evo Ex rail so much i decided to buy this 10" rail and it's pretty slick. The fit and finish on their rails are second to none. I ended up buying a verticle grip for my AR carbine with the 12" rail. I threw their hand/barricade stop on this for my 10.5" 300bo pistol build.
Recommended
6 Total Reviews
