Caliber: 5.56mm NATO. Barrel: 14.5”, 16”, 18” chrome-lined. Mil-spec, proprietary mid-length gas system. Free-floated, hammer forged, 1:7” twist. E3 round-lug bolt design; ambidextrous bolt release, selector, and magazine release. M-LOK handguard. Drop-in two-stage trigger. Three-prong flash eliminator. Models: Carbine (14.5” barrel, 6.3 lbs.); MOD 2 M-LOK (16” barrel, 6.55 lbs.); LPR (18” barrel, 7.4 lbs.). Length: 33”-36.5”. SEE POLITICAL PANIC PRICING.

Chambered for .223 Win. Fitted with target contour 20" free floating barrel. Two-stage match trigger. Flattop receiver. No sights. Weight about 7.9 lbs.

.223 fitted with 20" standard weight barrel, with two-stage target trigger. Handguard employs RAS accessory system. Fitted with flip-up low profile rear sight. Weight about 7.6 lbs.

Similar to SR-15 M-5, with 16" barrel, telescoping buttstock and vertical forend grip. Introduced 2006.

Caliber: 5.56mm NATO. Barrel: 14.5” chrome-lined mil-spec, proprietary mid-length gas system. Free-floated, hammer forged, 1:7” twist. E3 round-lug bolt design; ambidextrous bolt release, selector, and magazine release. M-LOK handguard. Drop-in two-stage trigger. 3-Prong Flash Eliminator. Weight: 6.55 lbs. Length: 33” to 36.5”. SEE POLITICAL PANIC PRICING.

Caliber: 5.56 NATO. Barrels: 11.5”, 13.7”, 14.5”, 16”, free-floated, hammer-forged, 1:7 twist, chrome-lined. Mil-spec proprietary mid-length self-indexing gas system with straight gas tube design. Gas block held in place with a nut, simplifying removal and maintenance. E3.2 enhanced bolt has an enlarged bolt face, dual ejectors, rounded bolt lugs, reduced diameter cam pin, and proprietary extractor and firing-pin designs. Improves ejection performance with suppressors on short-barreled carbines. Other updates in Mod 2.6 include proprietary free-floating URX 6 handguard, mirrored bolt catch and release, ambidextrous magazine release, selector, and charging handle. Quick Detach Coupling (QDC) flash hiders, drop-in two-stage match trigger. Models: KS-1 (13.7” heavy-profile barrel with ball-mill dimpling mid-length gas system, 6.88 lbs., 30.3” to 33.5” long.); KS-2 (14.5” light-profile barrel with mid-length gas system, 6.44 lbs., 31” to 34.3” long); KS-3 (11.5” barrel, 6.1 lbs., 28” to 31.3” long); KS-4 (16” barrel with extended mid-length gas system that utilizes a 15” variant of the URX handguard, 6.62 lbs., 32.5” to 35.75” long).

Caliber: 6.5 Creedmoor, 7.62 NATO. Barrels: 14.5”, 16”, free-floated, hammer-forged, 1:10 twist, chrome-lined. Similar to SR-15. Continuous top MILSTD-1913 rail, 7.62mm open brake compatible with KAC 7.62mm QDC Signature Reduction Devices. Models: K5 (7.62 NATO, 14.5” hybrid light-profile barrel, 8.34 lbs., 33.1” to 37.25”); K7 (6.5 CM, 14.5” dimpled hybrid medium-profile 5R Cut Rifled 416R barrel, 8.63 lbs., 33.1” to 37.25”); K3 (7.62 NATO, 16” barrel otherwise similar to K7, 8.7 lbs., 34.5” to 38.75”); K6 (6.5 CM, 16” barrel similar to K7 and K3, 8.9 lbs., 34.5” to 38.75”). A2 has a 20” barrel in 7.62 NATO, 9.42 lbs. A3 has 22” barrel in 6.5 CM, 9.89 lbs.