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Sightmark
Overview
The Sightmark Core Shot A-Spec FMS is a robust red dot sight designed for quick target acquisition and enhanced accuracy. Featuring a durable aluminum construction and a red reticle, this optic is optimized for use on firearms equipped with a Picatinny mounting interface. Builders often incorporate this sight into mid-length gas system AR-15 builds chambered in 5.56 NATO, making it a practical choice for a variety of shooting applications.
Based on build data
Weaver Multi-Slot Base - 48400
NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
Magpul AFG-2 Angled Fore Grip - Black
Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Weaver Multi-Slot Base - 48400 | 24 | |
| NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC | 21 | |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 20 |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 20 | |
| Magpul AFG-2 Angled Fore Grip - Black | 16 | |
| Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002 | 16 |
| Platform | Percentage |
|---|---|
| AR-15 | 89.5% |
| AR-10 | 7.9% |
| AR-9 | 2.6% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 83.3% |
| .223 Wylde | 11.1% |
| 6.5 Grendel | 5.6% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 61.5% |
| Carbine | 23.1% |
| Pistol | 7.7% |
| Rifle | 7.7% |
Builds in the community that include the Sightmark Core Shot A-Spec FMS 1x28x18mm Red Dot Sight - SM26017
| Build | Parts | Total |
|---|---|---|
 | 28 | $1925.38 |
 | 15 | $1148.42 |
 | 8 | $1258.34 |
 | 14 | $960.74 |
 | 24 | $4897.30 |
 | 12 | $3468.76 |
 | 29 | $2020.55 |
 | 18 | $2315.93 |
 | 14 | $958.98 |
| 27 | $1745.17 |
 | 11 | $2361.23 |
1 global rating
Sightmark Core Shot A-Spec FMS red dot has clear glass with no edge distortion. Zero held through a 500 round day. Battery life is good on auto-off mode. Reticle is crisp at 2 MOA. Solid budget red dot for any build.
