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Reviews & Ratings for Samson A.R.M.S. #40L Flip Up Rear Sight (Low) and #40L-SP Plane Dual Aperture — 9 reviews

(9 reviews)
Samson A.R.M.S. #40L Flip Up Rear Sight (Low) and #40L-SP Plane Dual Aperture
Samson A.R.M.S. #40L Flip Up Rear Sight (Low) and #40L-SP Plane Dual Aperture
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Most Helpful Positive Review Great (BUIS)
Easy to install, sighted in quickly, fast shipping and great price
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Great flip up rear sight

by Legacy Reviewer, Verified Owner from IL, United States Written on March 26, 2012
Every thing I was looking for in a flip rear sight. Took me a second to figure out install since you have to slide it along rail to install.
Would recommend: Yes
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Great back-up sight

by Legacy Reviewer, from CO, United States Written on November 9, 2011
Great back-up sight for my AR rifle. I typically use an EOTech holographic sight on my rifle, but this is a great back-up sight as it folds down out of the way when not needed. But is quickly accessible and holds zero when you need it.
Pros: Folds down out of the way
Cons: None
Would recommend: Yes
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Very Satisfied

by Legacy Reviewer, Verified Owner Written on October 15, 2011
This rare site fits my lar-8 Standard Operator like it was actually made for it! Very simple to install and operate. It is not plastic so it may just last as long as my gun. flips up easily and folds down securely The 40L- SP actually has a notch at the top for hold over when shooting long distance. The best thing about the scope is that it does not interfere with my scope when folded down. Still have a little clearance. My only complaint would be the price. I bought a PENTEX 4-12X40 scope on sale that actually cost less. Would easily recommend, would buy again (probably will never have to).
Pros: solid, easy to install, low profile
Cons: price
Would recommend: Yes
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Arms 40L

by Legacy Reviewer, Verified Owner from NV, United States Written on August 22, 2011
Great BUIS. Well made as expected from ARMS. Simple, durable, better fitting than MAGPUL equivalent.
Pros: Heavy duty
Cons: none
Would recommend: Yes
0 of 1 found the following review helpful.
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MORE THAN BACK-UP

by Legacy Reviewer, Verified Owner from OR, United States Written on August 6, 2011
This is a go to sight often relegated to the role of a back-up, as it is built to fit nicely under most proper eye position mounted primary optics. My kids and I use it as a primary sight on our non-precision rifles.
Pros: Intelligent Design and Hard Core Quality
Cons: Quality is Expensive!
Would recommend: Yes
1 of 2 found the following review helpful.
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Nice Sight VERY Pricey

by Legacy Reviewer, from TX, United States Written on July 16, 2011
I love this sight. I own two and will buy a third for my current AR 15 build. But they are expensive.
Pros: Ease of use
Cons: Price is way to high
Would recommend: Yes
0 of 1 found the following review helpful.
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Great quality sight

by Legacy Reviewer, from WA, United States Written on May 9, 2011
I have 2 of these and I have had zero issues with them. I would highly recommend them to anyone.
Pros: High quality construction, Low profile when folded
Cons: A little pricy, but get what you pay for
Would recommend: Yes
0 of 1 found the following review helpful.
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A Worthwhile BUIS

by Legacy Reviewer, Verified Owner from IN, United States Written on October 4, 2010
Replaced the OE sights on my sig sauer 556 with this and couldn't be happier.
Pros: tough, easy to use, dual aperture
Cons: price
Would recommend: Yes
3 of 4 found the following review helpful.
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Last updated 2025-11-12 UTC.