Knights Armament

Knights Armament ranked #60 of 323 brands on GunPartPicker in September 2026, just behind Expo Arms, with about 1 in every 333 parts builders added. Down from #55 in August. Builders reached for Knights Armament mostly for lower receiver parts. The most added single part was the Knight's Armament Co SR-15, 5.56mm, Stripped Lower Receiver ***BLEMISHED***, on top again this month.

Suppressors were the busiest Knights Armament category in September: 13 products came back in stock, several more than once. Upper receivers saw no restocks all month. About 30% of the 138 Knights Armament products we track are in stock today.

Also popular this month: Knights Armament Sr-25 Lower Receiver 7.62mm, Sr-25 Precision Rifle Complete Upper Receiver 6.5 Creedmoor M-LOK - Upper Receiver Precision Rifle KIT 6.5 Creedmoor 22 Barrel, Knights Armament Sr-15 Iws Lower Receiver Complete and Knights Armament M4 Ras Handguard.

Why Knights Armament

Knight's Armament is the Titusville, Florida outfit that worked with Eugene Stoner on the SR-25. SOCOM adopted it in May 2000 as the Mk 11 Mod 0, and it later became the Army's M110.

Today's SR-25 comes as the CC and PC carbines on 16 inch barrels and the PR on a 20 inch. All use hammer forged, chrome lined 1:10 barrels, an E2 bolt with dual ejectors and ambi controls. Carbines run just under $5,000.

On the parts side, KAC's RIS and RAS rails are part of the SOPMOD M4 kit, and it also makes suppressors and night vision sights.

Expect to pay well over the typical part: about $2,090 for an upper against roughly $400, $1,000 for a lower against $213, and $1,280 for a suppressor against $900.

Then there's finding one. In early October only about 13% of KAC listings across stores were in stock, so a lot of it is wait and watch.

We'd buy KAC if you want the real military pattern rifle and can wait. For a working AR-10, you'll spend far less elsewhere.