Patriot Ordnance Factory DROP IN TRIG 4lb Single Stage EFP

POF-USA Patriot Ordnance Factory DROP IN TRIG 4lb Single Stage EFP - Trigger for AR-15 - view 1
POF-USA Patriot Ordnance Factory DROP IN TRIG 4lb Single Stage EFP - Trigger for AR-15 - view 2
POF-USA Patriot Ordnance Factory DROP IN TRIG 4lb Single Stage EFP - Trigger for AR-15 - view 3
POF-USA Patriot Ordnance Factory DROP IN TRIG 4lb Single Stage EFP - Trigger for AR-15 - view 4
Buy Now

POF-USA

Overview

The Patriot Ordnance Factory DROP IN TRIG is a single-stage trigger designed specifically for AR-15 platforms, featuring a pull weight of 4 lbs. This trigger delivers a crisp and consistent break, allowing for improved accuracy and faster follow-up shots, which is essential for precision shooting. It's often favored in builds where responsiveness and performance are key, making it a solid choice for competitive shooting or tactical applications.

Specifications

MPN516
PlatformAR-15
TypeSingle-Stage
Pull Weight4 lbs

Available Merchants(9)

Prices checked

Price Alert

Log in to set a price alert on this product.

BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$183
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$184
Classic Firearms logo
Classic Firearms
Shipping varies
Shipping Speed
In Stock
$191
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
In Stock
$198
Guns.com logo
Guns.com
Free shipping
Shipping Speed
Stock Unknown
$151
Sportsmans Outdoor Superstore logo
Sportsmans Outdoor Superstore
Flat rate shipping
Shipping Speed
Out of Stock
$4
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
Out of Stock
$140
AT3 Tactical logo
AT3 Tactical
Shipping TBD
Shipping Speed
Out of Stock
$166
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
Out of Stock
$188

September 2026 on GunPartPicker

POF-USA Patriot Ordnance Factory DROP IN TRIG 4lb Single Stage EFP ranked #36 of the 228 triggers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since April 2026. All time, it ranks #55 of the 465 triggers builders have added.

It was in stock most days in September 2026, but today 4 of the 9 retailers we track have it in stock. It dipped to $139.93 at KY Gun Company for a stretch in September 2026, well under its usual $165.99, so sales do come around. Buying today, the lowest price is $183 at BattleHawk Armory, above September's low of $139.93, so a better deal may come back.

Trending triggers →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers

Not sure which trigger to pick?

We ranked every trigger by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Trigger Popularity Report →

Frequently Built With

The part most often added in each category by the builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

85.9%
AR-1585.9%
AR-1011.5%
AR-92.6%

Caliber

71.7%
5.56 NATO71.7%
.223 Wylde9%
300 Blackout7.9%
.308 Win4.2%
9mm1.6%
Other5.3%

Gas System

51.6%
Mid-Length51.6%
Carbine26.6%
Rifle11%
Pistol9.8%
Blowback0.6%
Other0.3%

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!