+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 Crimson Trace LG-420 Laserguard, Green Laser Sight For Sig Sauer P320 — 10 reviews

(10 reviews)
Crimson Trace LG-420 Laserguard, Green Laser Sight For Sig Sauer P320
Crimson Trace LG-420 Laserguard, Green Laser Sight For Sig Sauer P320
$329.99 $285.95 Save 13%
View Product
Write a Review
Compare (0)
1 item has been added
Add at least two items to compare
Most Helpful Positive Review JG-420G - Thumbs UP
The Crimson Trace LG-420G fit was very tight and secured. After putting about a 100 rounds down range the zero did not deviate the entire time I was shooting. I would recommend this Laserguard to anyone interested. I also like the separate ON/OFF switch.
Show
Sort by
Filter by

Crimson Trace LG-420 laserguard

by JAMES, Verified Owner from VA, United States Written on June 10, 2025
I am very impressed with this laser sight for my sig sauer P320. For one thing, the green laser is much stronger than a red laser. The nicely discounted price from the MSRP is also advantageous. Installation was easy. When dialing in the sight, I found that adjusting the windage and elevation separately is much easier than trying to adjust both at the same time. If shooting a significant number of rounds, be sure that the two installation screws have not loosened.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

crimson trace LG-420G

by Floody, Verified Owner from WA, United States Written on November 9, 2024
Easy to install. Already zeroed. Love the ease of use. Green laser is easy to see in most conditions.
Not bulky.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Crimson Trace LG-420 Laserguard

by Dutch Al, from CO, United States Written on February 16, 2024
The LG 420G fits the SIG P320 perfectly. Easy to adjust zero, and holds zero so far (200+ rounds). Has a battery door which allows changing the battery WITHOUT removing the laser from the pistol. use of the ON switch is easy, quick to learn. Green dot is bright and well defined, very easy to pick up.
Best Used for:
  • low light conditions
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Crimson Trace Green Laser

by JAB, Verified Owner from SC, United States Written on February 7, 2024
Easy installation, with the wrenches included in the box. The green laser is much easier for my tired eyes to pick up quickly. Great product.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

You need this

by Timmyg, Verified Owner from SC, United States Written on December 12, 2023
It was expensive. They say green is better than red because green works better in daylight. I'll take their word for it. I never saw one before and it took me less than 5 minutes to install. No adjustments or anything. Point and shoot. Don't worry about the sights. It's awesome
Pros:
  • Easy to install
Cons:
  • Expensive
Best Used for:
  • Any handgun it fits
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Exact Fit and Easy Installation

by DJ, from MI, United States Written on November 2, 2020
I am not a gun guy, but this went on super easy with all the tools provided. Got some help from someone on sighting it in and am good to go. Really like the grip button on and off. Grip the gun, laser is on. Hand off the gun, laser is off.

Curious how the batteries for life work.

Exact fit and looks like it belongs there.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

review-green laser

by Bobbie, from CO, United States Written on October 7, 2018
This is my second laser that I have purchased from you. You have change your shipping and it is very slow, or I should say slower than usual. The crimson trace laser is excellent as usual, I do not like changing a laser from one pistol to another. If the need should come up again, I will not hesitate buying this product again. Thanks
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No
Share

Crimson Trace Laserguard is Awesome!

by Drober30, from MI, United States Written on June 3, 2018
I have been installing the Crimson Trace Laserguards on all my guns, the ability to quickly acquire a target while maintaining your situational awareness is what makes adding a laser so great. Without a laser, you must get you iron sights up and on target, this would be very difficult in many situations.
Pros:
  • Free Batteries for life
  • very bright
  • Easy to activate
Cons:
  • None
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No
Share

The Best Laser for Your Pistol

by VNCBC, from MO, United States Written on May 8, 2018
Easy, and intuitive activation. Strong laser and very visible even in day light. Much better than rear push button styles. This laserguard looks like it was made with the pistol. Installation is easy with the provided Allen wrench.
The hard part is finding a holster for the Sig P320 with the laserguard. This unit is so new there is no manufacturer making one at this time. The Sig P320 is popular enough that we should start seeing holsters soon.
Pros:
  • Easy activation
Cons:
  • No holsters
Best Used for:
  • PERSONAL DEFENCE
Would recommend: Yes
1 of 1 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?