Easy-Add Rear Aperture Sights

by
posted on April 11, 2014
** 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. **
diy2015_fs.jpg

For those shooters who still "see" the value in iron sights on rifles and, in particular, rear apertures, XS Sight Systems has several options that are quickly user-installed on a variety of popular guns. (Of course, you'll need a front sight, too, and there are a few ways to add those to guns that don't already have them that don't involve gunsmithing, but we'll look at that in a future post.) XS's options for rear apertures include low and high versions of a Picatinny-rail-mounted unit along with Sako, Ruger and Remington 700 models. (The Ruger requires drilling and tapping.) One of their benefits is that they instantly increase sight radius-the dimension between the sights-because they mount at the receiver's rear, where an aperture-style sight is most effective, rather than at its front or on the barrel, which is where most factory rear sights are installed. The simple XS design features a finely threaded post that is unscrewed to raise it or screwed-in to lower it. Flats on its right and left sides allow it to be secured with set screws on either side of the sight's base, which is dovetailed to accept the post's female-threaded base with its complementary dovetail. The company even offers its aperture post with threads on the aperture's inner surface that accept Williams-threaded apertures, so you can use the post alone as a ghost ring or screw in a smaller aperture for more precise shooting. All that's needed for installation is an Allen wrench. Don't forget the blue LocTite. If you've ever had a riflescope fail on a big hunt, you might see the value in iron sights, too. What's your story?

Latest

World War I-era Berthier M16 carbine
World War I-era Berthier M16 carbine

Taking It Home: War Trophies in American History

From our founding to the more recent past, war-trophy firearms have played a significant role in arming American citizens.

Questions & Answers: Patterning with the Poly Choke

I bought a Remington 1100 LW 20-gauge shotgun for my wife to shoot clay targets (informally) and sometimes hunt with me when I go hunting for waterfowl.

Meprolight Offers Free Suppressor With Optic Purchase

Readers have only until July 31, 2026, to purchase a qualifying Meprolight optic and be eligible to receive a rebate for a free Backdraft Hunter suppressor in a caliber of their choosing.

Gun Locker: Wilson Combat eXperior Elite

Wilson Combat continues its fine tradition of making excellent guns even better with its new eXperior Elite design.

The Sako 90 Grizzly: Modernity Meets Tradition

Hunting remains a largely traditional activity, and some of us just like the feel of a nice wood stock. For those purists among us, Sako has introduced its new-for-2026 Grizzly.

The Armed Citizen® July 13, 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.