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Palmetto State Armory
Overview
The PSA 2 Stage Nickel Boron Trigger Assembly is designed specifically for the AR-15 platform, featuring a two-stage trigger mechanism that enhances precision and control during shooting. This type of trigger allows for a smoother pull, with a distinct break between the first and second stages, making it ideal for precision shooting and improved accuracy. This trigger assembly is commonly found in builds with a mid-length gas system and chambered in 5.56 NATO, catering to those looking for enhanced performance in their rifles.
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Based on build data

Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length
Gas Tube
Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas Block
Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C
Buffer Spring
Yankee Hill Machine Complete Ar-15 Lower Receiver - M4 Stock
Lower Receiver
Diamondback Firearms 5.56 Ar-15 Bolt Carrier Group - Nitride
Bolt Carrier GroupAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 4 |
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | Gas Tube | 4 |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 4 |
| Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C | Buffer Spring | 3 |
| Yankee Hill Machine Complete Ar-15 Lower Receiver - M4 Stock | Lower Receiver | 3 |
| Diamondback Firearms 5.56 Ar-15 Bolt Carrier Group - Nitride | Bolt Carrier Group | 3 |
| Platform | Percentage |
|---|---|
| AR-15 | 90.9% |
| AR-10 | 9.1% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 64.3% |
| .223 Wylde | 21.4% |
| 300 Blackout | 14.3% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 70% |
| Carbine | 20% |
| Pistol | 10% |
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