Holosun HM3X 3X Magnifier
Click to see full view
Holosun
Overview
The Holosun HM3X 3X Magnifier is a full-size optical accessory designed to enhance your target acquisition by providing a 3X magnification for your red dot sight. Its black finish allows it to blend seamlessly with most setups while offering a clear and precise view of distant targets. This magnifier is frequently utilized in builds featuring a pistol gas system and chambered in 5.56 NATO, making it a popular choice for those looking to improve their accuracy at extended ranges.
Specifications
August 2026 on GunPartPicker
Holosun HM3X 3X Magnifier was the ninth most added magnifier on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it is the ninth most added magnifier on the site. Builds with this magnifier are split between 5.56 NATO (50%) and 9mm (50%), nearly all on carbine-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 9 of the 13 retailers we track have it in stock. The best price crept up from $175.99 to $199.99 over August 2026. Buying today, the lowest price is $175.99 at Sportsman's Guide, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
Not sure which magnifier to pick?
We ranked every magnifier by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Magnifier Guide →Frequently Built With
The part most often added in each category by the 38 builds that include this one
Holosun HS510C HUD Solar Powered Circle Dot Sight
BCM 5.56 NATO Midlength Barreled Upper - MCMR-15 - 16"
PSA AR-15 Blem "Stealth" Stripped Lower Receiver
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
Geissele Automatics Super Semi-Automatic Enhanced SSA-E Two Stage AR-15 Trigger .154"
Magpul AFG-2 Angled Fore Grip - Black
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Builds Featuring This Part
See all 2 →Builds in the community that include the Holosun HM3X 3X Magnifier
| Build | Parts | Total |
|---|---|---|
 | 27 | $2969.88 |
 | 27 | $1327.36 |
No reviews yet. Be the first to review this product!