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Knights Armament Guns for Sale

Founded: 1982

HQ: United States

Knight's Armament Company is an American manufacturer founded in 1982 by C. Reed Knight Jr. The company is known for pioneering the widely used RIS/RAS accessory rail systems and for designing the U.S. military’s Mk 11 Mod 0 and M110 Semi-Automatic Sniper System.

Popular Knights Armament Models for Sale

Popular Knights Armament Platforms

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Knights Armament Auctions

3 active auctions ending soon

Knight's Armament (KAC) SR-15 Lower Receiver Rifle Lowers SR15 AR AR15

Knight's Armament (KAC) SR-15 Lower Receiver Rifle Lowers SR15 AR AR15

Knights Armament KAC SR-15 E3 Mod 2 5.56 NATO AR15 SR15 AR URX +TWO MAGS

Knights Armament KAC SR-15 E3 Mod 2 5.56 NATO AR15 SR15 AR URX +TWO MAGS

Knights Armament KAC SR-15 SR15 AR15 AR

THREE (3) Knight's Armament (KAC) Folding Micro Rear Sight

THREE (3) Knight's Armament (KAC) Folding Micro Rear Sight

Recently Sold

Knight's Armament (KAC) SR-15 Carbine Mod 2 Upper Receiver Kit URX 4 SR15

Sold On 07/31/2026

Knight's Armament (KAC) SR-15 Carbine Mod 2 Upper Receiver Kit URX 4 SR15

Knights Armament KAC SR-15 E3 Mod 2 5.56 NATO AR15 AR SR15 +TWO MAGS

Sold On 07/29/2026

Knights Armament KAC SR-15 E3 Mod 2 5.56 NATO AR15 AR SR15 +TWO MAGS

Knights Armament KAC SR-15 AR SR15 AR15 URX4 M-LOK

Knight's Armament (KAC) Front & Rear Iron Sights Gun BUIS Sight

Sold On 07/29/2026

Knight's Armament (KAC) Front & Rear Iron Sights Gun BUIS Sight

Knight's Armament (KAC) KS-4 5.56mm NATO Threaded Rifle Upper KS4

Sold On 07/24/2026

Knight's Armament (KAC) KS-4 5.56mm NATO Threaded Rifle Upper KS4

Knight's Armament (KAC) KS-4 5.56mm NATO Threaded Rifle Upper KS4

Sold On 07/22/2026

Knight's Armament (KAC) KS-4 5.56mm NATO Threaded Rifle Upper KS4

1995 Knights Armament KAC SR-25 Match Rifle 7.62 NATO AR-10 AR10 SR25

Sold On 07/17/2026

1995 Knights Armament KAC SR-25 Match Rifle 7.62 NATO AR-10 AR10 SR25

KAC SR-25 AR-10 AR10 SR25 CARBON-FIBER FREE-FLOAT

Knights Armament KAC SR-15 E3 Mod 2 5.56 NATO AR15 AR FDE SR15 +OG PARTS

Sold On 06/26/2026

Knights Armament KAC SR-15 E3 Mod 2 5.56 NATO AR15 AR FDE SR15 +OG PARTS

Knights Armament KAC SR-15 AR15 AR SR15 URX4 M-LOK

SBR Knights Armament KAC SR-15 CQB Mod 2 5.56 NATO AR15 SR15 +ORIG BOX

Sold On 06/09/2026

SBR Knights Armament KAC SR-15 CQB Mod 2 5.56 NATO AR15 SR15 +ORIG BOX

Knights KAC SR-15 AR SR15 AR15 E3 BOLT URX 4 M-LOK

Knights Armament KAC SR-25 E2 APC 7.62 NATO AR-10 AR10 SR25 +ORIG CASE

Sold On 06/04/2026

Knights Armament KAC SR-25 E2 APC 7.62 NATO AR-10 AR10 SR25 +ORIG CASE

Knights Armament SR-25 SR25 AR-10 AR10 URX 4 M-LOK

KNIGHTS ARMAMENT! KAC SR-15 AR15 E3 Mod 2 Carbine 5.56 NATO 16" +MAG & CASE

Sold On 04/10/2026

KNIGHTS ARMAMENT! KAC SR-15 AR15 E3 Mod 2 Carbine 5.56 NATO 16" +MAG & CASE

BATTLE READY! Knights Armament KAC SR15 556 AR-15

LOWER RECEIVER Knights Armament KAC SR-15 IWS 5.56 NATO AR15 SR15 AR

Sold On 03/25/2026

LOWER RECEIVER Knights Armament KAC SR-15 IWS 5.56 NATO AR15 SR15 AR

Knights Armament KAC SR-15 SR15 556 AR15 AR

Knights Armament KAC SR-25 E2 ACC M-LOK 7.62 NATO AR-10 AR10 16" +ORIG CASE

Sold On 03/23/2026

Knights Armament KAC SR-25 E2 ACC M-LOK 7.62 NATO AR-10 AR10 16" +ORIG CASE

KAC SR-25 762 AR-10 AR10 SR25 FDE Stoner Rifle

Knights Armament KAC SR-15 E3 MOD 2 5.56 NATO AR15 AR 16" SR15 Stoner Rifle

Sold On 03/20/2026

Knights Armament KAC SR-15 E3 MOD 2 5.56 NATO AR15 AR 16" SR15 Stoner Rifle

Knights Armament KAC SR-15 556 AR15 AR SR15

Knights Armament KAC SR-25 ECR 7.62 NATO AR-10 AR10 20" M110 SASS +OG CASE

Sold On 03/16/2026

Knights Armament KAC SR-25 ECR 7.62 NATO AR-10 AR10 20" M110 SASS +OG CASE

KAC SR-25 762 AR-10 AR10 Stoner Rifle +BIPOD

Knights Armament KAC SR-15 E3 IWS Mod 1 5.56 NATO AR15 16" +4 MAGS

Sold On 01/30/2026

Knights Armament KAC SR-15 E3 IWS Mod 1 5.56 NATO AR15 16" +4 MAGS

Knights Armament KAC SR-15 556 AR15 SR15 URX Rail

DESIRED FDE Knights Armament KAC SR-15 E3 MOD 2 AR15 SR15 3 MAGS

Sold On 10/17/2025

DESIRED FDE Knights Armament KAC SR-15 E3 MOD 2 AR15 SR15 3 MAGS

Knights KAC SR-15 SR15 556 AR15 ORIG CASE KEYMOD

DESIRED Knights Armament KAC SR-15 E3 Mod 2 SR15 5.56 NATO AR AR15 16"

Sold On 10/15/2025

DESIRED Knights Armament KAC SR-15 E3 Mod 2 SR15 5.56 NATO AR AR15 16"

Knights KAC SR-15 556 AR15 AR URX-4 M-LOK

STONER RIFLE Knights Armament KAC SR-15 E3 Carbine 5.56 NATO 16.1" KAC SR15

Sold On 04/18/2025

STONER RIFLE Knights Armament KAC SR-15 E3 Carbine 5.56 NATO 16.1" KAC SR15

Knights Armament KAC SR-15 AR-15 AR15 AR SR15 E3

Sell a Gun Consign a Gun

Knights Armament KAC SR-25 Stoner Rifle Military Match 7.62 Knights SR-25

Sold On 02/28/2025

Knights Armament KAC SR-25 Stoner Rifle Military Match 7.62 Knights SR-25

Knights Armament SR25 Military Match Knights-SR25

Knights Armament (KAC) SR-30 MOD 1 300 Blackout 16" KAC SR-30 MOD-1

Sold On 02/24/2025

Knights Armament (KAC) SR-30 MOD 1 300 Blackout 16" KAC SR-30 MOD-1

Knights Armament (KAC) SR-30 KAC-SR-30 MOD-1

Knights Armament (KAC) SR-25 EMC 7.62 NATO Knights-Armament-SR-25 M110 KAC

Sold On 02/03/2025

Knights Armament (KAC) SR-25 EMC 7.62 NATO Knights-Armament-SR-25 M110 KAC

Knights Armament KAC SR-25 AR-10 AR10 Stoner Rifle

STONER RIFLE Knights Armament SR-15 Mod 2 SR15 5.56 SR-15 Knights-Armament

Sold On 10/07/2024

STONER RIFLE Knights Armament SR-15 Mod 2 SR15 5.56 SR-15 Knights-Armament

Knights Armament KAC SR-15 AR-15 AR15 AR SR15

Knights Armament (KAC) SR-15 M5 Stoner Rifle 5.56 NATO SR-15 7 MAGS & OPTIC

Sold On 08/16/2024

Knights Armament (KAC) SR-15 M5 Stoner Rifle 5.56 NATO SR-15 7 MAGS & OPTIC

Ban Era Knights Armament SR-15 Tactical Combat

Knights Armament KAC SR-15 CQB MOD.2 SBR 5.56 NATO 11.5" SR-15 SR15 +5 MAGS

Sold On 08/09/2024

Knights Armament KAC SR-15 CQB MOD.2 SBR 5.56 NATO 11.5" SR-15 SR15 +5 MAGS

Knights Armament KAC SR-15 AR-15 SR15 +DRAGO CASE

Knights Armament (KAC) SR-15 E3 Mod 2 5.56 NATO 16" SR-15 Stoner +ORIG CASE

Sold On 07/29/2024

Knights Armament (KAC) SR-15 E3 Mod 2 5.56 NATO 16" SR-15 Stoner +ORIG CASE

Knights Armament (KAC) SR-15 SR15 AR-15 AR15 FDE

Knights Armament (KAC) KP1 50 BPM 26" Knights-Armament (KAC)-KP1 KP-1 OPTIC

Sold On 04/26/2024

Knights Armament (KAC) KP1 50 BPM 26" Knights-Armament (KAC)-KP1 KP-1 OPTIC

Knights Armament (KAC) KP1 KP-1

Knights Armament (KAC) SR-15 E3 Mod 0 5.56 NATO 16" AR-15 AR15 SR-15 AR E3

Sold On 11/21/2023

Knights Armament (KAC) SR-15 E3 Mod 0 5.56 NATO 16" AR-15 AR15 SR-15 AR E3

Knights Armament (KAC) SR-15 E3 AR-15 AR15 AR

UBER RARE PRE-BAN Knights Armament SR-25 Match 7.62 NATO 24.5" KAC STONER

Sold On 09/14/2023

UBER RARE PRE-BAN Knights Armament SR-25 Match 7.62 NATO 24.5" KAC STONER

LIMITED KAC SR-25 Match DMR URX Grey M110 SASS

Knights Armament Mountaineer 50 BPM 1rd FLUTED KAC Knights-Armament +OPTIC

Sold On 08/17/2023

Knights Armament Mountaineer 50 BPM 1rd FLUTED KAC Knights-Armament +OPTIC

Knight's Armament (KAC) Mountaineer

Knight's Armament SR-25 Stoner 7.62x51 Rifle Special Forces Operator Sniper

Sold On 03/28/2023

Knight's Armament SR-25 Stoner 7.62x51 Rifle Special Forces Operator Sniper

SR-25 Stoner

All Knights Armament models