Lower Receivers Archives - Operation Parts, Inc.

KAC-Knight’s Armament SR-15 Stripped Lower Receiver

Admin — Wed, 24 Sep 2025 22:36:22 +0000

KAC-Knight’s Armament SR-15 Stripped Lower Receiver (22360)

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KAC-Knight’s Armament SR-15 IWS Lower Build Kit BLEM

Admin — Fri, 19 Sep 2025 23:39:50 +0000

KAC-Knight’s Armament SR-15 IWS Lower Build Kit BLEM (123689) These are “old style”, not the V2 new ones Build kit Includes: All the proprietary parts (ambi mag release, ambi bolt release, as well as trigger guard and takedown/pivot pins) This kit does NOT include trigger, safety, or buffer tube/spring/weight/castle nut/end plate Per KAC, these are […]

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KAC-Knight’s Armament SR-30 IWS Lower Receiver Assembly

Admin — Thu, 19 Sep 2024 19:02:44 +0000

KAC-Knight’s Armament SR-30 IWS Lower Receiver Assembly (31742) KNIGHT’S ARMAMENT SR-30 IWS LOWER RECEIVER ASSEMBLY Includes: Lower Marked SR-30, may be legal in states that prohibit SR-15 ownership with modification KAC HH Buffer KAC 2 Stage Match 4.5lb Trigger KAC Combat Trigger Guard Ambidextrous Safety Selector Ambidextrous Magazine Release Ambidextrous Bolt Release Ambidextrous Receiver Mounted […]

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KAC-Knight’s Armament SR-15 IWS Lower Receiver Assembly

Admin — Wed, 07 Aug 2024 19:17:26 +0000

KAC-Knight’s Armament SR-15 IWS Lower Receiver Assembly (25780) Complete Knights Armament lower receiver kit Includes: KAC 2 Stage Match 4.5lb Trigger KAC Combat Trigger Guard Ambidextrous Safety Selector Ambidextrous Magazine Release Ambidextrous Bolt Release Ambidextrous Receiver Mounted QD Sling Mount Ambidextrous QD Push Button Swivel Sockets On Stock SR-15 Manual Magpul stock

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Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – Radian OD

Admin — Mon, 08 Jan 2024 20:51:28 +0000

Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – Radian OD (R0391) Machined from billet 7075-T6 aluminum, the AX556 is a fully ambidextrous lower receiver for AR15-style firearms. In addition to the Talon Ambidextrous Safety Selector, left-side magazine release, and right-side bolt release, the AX556 features the patented A-DAC (Ambidextrous Dual Action Control), which allows right-handed […]

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Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – FDE

Admin — Mon, 08 Jan 2024 20:43:58 +0000

Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – FDE (R0390) Machined from billet 7075-T6 aluminum, the AX556 is a fully ambidextrous lower receiver for AR15-style firearms. In addition to the Talon Ambidextrous Safety Selector, left-side magazine release, and right-side bolt release, the AX556 features the patented A-DAC (Ambidextrous Dual Action Control), which allows right-handed shooters […]

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Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – Radian Brown

Admin — Mon, 08 Jan 2024 20:33:39 +0000

Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – Radian Brown (R0389) Machined from billet 7075-T6 aluminum, the AX556 is a fully ambidextrous lower receiver for AR15-style firearms. In addition to the Talon Ambidextrous Safety Selector, left-side magazine release, and right-side bolt release, the AX556 features the patented A-DAC (Ambidextrous Dual Action Control), which allows right-handed […]

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Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – Radian Grey

Admin — Mon, 08 Jan 2024 20:17:42 +0000

Radian Weapons AX556 Ambidextrous AR15 Lower Receiver – Radian Grey (R0388) Machined from billet 7075-T6 aluminum, the AX556 is a fully ambidextrous lower receiver for AR15-style firearms. In addition to the Talon Ambidextrous Safety Selector, left-side magazine release, and right-side bolt release, the AX556 features the patented A-DAC (Ambidextrous Dual Action Control), which allows right-handed […]

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