Preview: Dillon OPAR 3.5—Curved

by
posted on January 20, 2024
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Dillion drop-in trigger assembly

The OPAR from Dillon Rifle Co. is a drop-in trigger assembly that provides AR-15 rifles with an additional level of protection against accidental discharges.

Operating in similar fashion to the “Glock-style” blade trigger safeties employed by many modern striker-fired pistol designs, a blade that bisects the trigger shoe must first be depressed before the trigger proper will retract to trip the sear.

Available in versions with either curved or straight trigger blades, and tuned to break at either 3 lbs., 8 ozs., or 5 lbs., 8 ozs., of pressure, the single-stage OPAR exhibited minimal creep, a crisp break, zero overtravel and a short reset in our testing.

MSRP is $265. For more information, visit dillonriflecompany.com.

Latest

Heckler & Koch VP9CC
Heckler & Koch VP9CC

Review: Heckler & Koch VP9CC

HK’s new VP9CC offers VP9 features in a micro-size pistol.

Former Barnes Bullets CEO Randy Brooks Passes Away

Randy Brooks, former president and CEO of Barnes Bullets, passed away on Aug. 27 peacefully in his Mona, Utah, home.

NRA-ILA Names Patriot Mobile Official Partner of the 2026 NRA Gun Bus Battleground Tour

America’s only Christian conservative wireless provider, Patriot Mobile, will keep the tour connected as the NRA-ILA team takes the Second Amendment fight on the road.

New Suppressors for 2026: A Full Guide

With the removal of the $200 NFA tax stamp on suppressors, the only sound reverberating across the firearms landscape is “cha-ching.”

MDT Now Offering Lone Peak Arms Rifle Actions

Earlier in 2026, MDT announced that it had acquired Lone Peak Arms, and now, the company's rifle actions are available to consumers.

The Armed Citizen® Aug. 31, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Interests



Get the best of American Rifleman delivered to your inbox.