The Gen 2 3MR trigger assembly for AR-15/AR-10 platforms represents a dramatic performance improvement over the original 3MR. The Gen 2 leans on the original assisted reset functionality while vastly improving the enhanced-reset characteristic. This is achieved by increasing the reset force time on the trigger assembly. The Gen 2 3MR is NOT a forced reset trigger; it is the most efficient assisted reset trigger ever made. Unlike forced reset triggers, the Gen 2 3MR continues to be the only assisted reset trigger technology expressly approved by the ATF and non-NFA. The Gen 2 3MR ships with an ambidextrous selector compatible with weapons using AR-15/AR-10 small pin .154in mil-spec style fire control groups. The Gen 2 3MR is a drop-in 3-mode fire control system with Safe, Semi-Automatic, and Delta Vs patented, enhanced 3rd Mode. The 3rd mode has a positive reset that dramatically reduces the split times between shots. The positive reset characteristic is achieved by transferring the force from the bolt carrier through the trigger assembly to assist the trigger back onto the front sear. As a result, this gives the firearm the fastest reset possible. Both semi and 3rd mode positions exhibit a non-adjustable 4.5 pound trigger pull weight. Compatible with Weapons using AR-15 Mil-Spec style Fire Control Groups. Not recommended for use in polymer lowers or 7.62x39 platforms. Due to variances in weapon manufacturer tolerances, some adjustment may be necessary to prevent trigger malfunctions. The Gen 2 3MR ships with a 1/16th hex and several plunger springs for fine-tuning the hammer plunger to prevent malfunctions and enhance performance. Specifications for Delta V Gen 2 3MR AR Trigger: Manufacturer: Delta V Color: Black/Nickle Finish: Nickel-Teflon Trigger Shape: Curved Trigger Pull Weight: 64 oz Trigger Pin Size: Small Hand: Ambidextrous Gun Make: AR Platform Gun Model: AR-10, AR-15 Gun Type: Rifle Trigger Material: Tool Steel Features of Delta V Gen 2 3MR AR Trigger Precision Tunable Reset Characteristic 3 Mode Drop-In Trigger 3rd Mode Has a Vastly Improved Positive Reset Characteristic Standard Semi Auto is a Match Grade 4 1/2 Pound Pull Rate Offers Minimal Take-Up and Overtravel Four Selector Paddles of Various Length/Thickness Components are Coated with NP3 (Nickel Teflon) BATFE Compliant/Non-NFA Package Contents: Delta V Gen 2 3MR AR Trigger 3 Mode Billet Selector