Knight’s Armament KAC KS2 SR-15 E3.2 14.5″ MLOK Upper Receiver Group

Knight’s Armament KAC KS2 SR-15 E3.2 14.5″ MLOK Upper Receiver Group

Item: 121436

The 14.5″ KS-2 is the next generation of SR-15s from Knight’s Armament, improving upon the Mod 2 with the new URX6 rail and fully ambidextrous controls.
The KAC KS-2 SR-15’s 14.5” chrome lined, 5.56mm NATO barrel is manufactured to military specifications, features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil, and is free-floated inside a 13” URX 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. On top of featuring a lobster-tail extractor for more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

Knight’s Armament KAC KS1 SR-15 E3.2 13.7″ MLOK Upper Receiver Group

Knight’s Armament KAC KS1 SR-15 E3.2 13.7″ MLOK Upper Receiver Group

Item: 121435

The 13.7″ KS-1 is the next generation of SR-15s from Knight’s Armament and the current-issue service rifle of the Royal Marines.
The KAC KS-1 SR-15’s 13.7” chrome lined, 5.56mm NATO barrel is of a heavy profile and has ball dimples machined into the surface to increase rigidity for higher volumes of fire. It features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil and is free-floated inside a 13” URX 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. On top of featuring a lobster-tail extractor for more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

 

LMT Full-Auto Enhanced 5.56 BCG

NSN: 1005-01-650-2818

 

If our standard bolt carrier group is the infantryman of the gun industry, then our enhanced BCG is the delta operator.  This carrier group was designed to function effectively in full-auto, suppressed, and short barrel weapon systems, and it is made of materials far more durable than your standard fare.  Quite simply, it’s the best possible upgrade for your rifle to increase reliability and functionality.

L7Q3

Behold the laundry list of enhancements our design brings to the table:

Carrier:

  • Altered cam path for longer dwell time and more robust extraction
  • Modified gas hole improves gas flow across the bolt’s tail
  • Additional gas ports on right side and modified orientation to improve gas flowing through the ejection port, and not into your face
  • Relief grooves added to the top and bottom to channel debris and maintain fluid movement

Bolt:

  • Built from a proprietary material that is not only stronger than the standard bolt but easier to clean as well
  • Modified locking lugs provide flexibility and durability in dealing with high-pressure, overgassed loads
  • “Lobster tail” extractor utilizes two springs to allow stronger and more consistent extraction with drastically improved spring life

Knight’s Armament KAC KS4 SR-15 E3.2 16″ MLOK Rifle

Knight’s Armament KAC KS4 SR-15 E3.2 16″ MLOK Rifle

Item: 121442

The 16″ KS-4 is the next generation of SR-15s from Knight’s Armament, improving upon the Mod 2 with the new URX6 rail and fully ambidextrous controls.
The KAC KS-4 SR-15’s 16” chrome lined, 5.56mm NATO barrel is manufactured to military specifications, features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil, and is free-floated inside a URX 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. On top of featuring a lobster-tail extractor for more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

A now fully ambidextrous bolt release, selector, and magazine release offer left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

OSS HX-QD 556

An extremely rugged suppressor, the HX-QD 556 is built with proven Flow-Through® technology, delivers hearing safe mid-130s dB performance, has no barrel length restrictions, is full-auto rated, and easily passes the USSOCOM Reliability Stress Test – it’s the ideal suppressor for all 5.56 rifles.

Materials & Finish: Unlike traditional suppressors that manage trapped gas, intense heat and pressure with blast baffles, OSS’s Flow-Through technology redirects expanding gases forward allowing us to use 17-4 stainless steel deflectors and internal Grade 5 Titanium coils.  The result is a remarkably cooler and extremely durable suppressor. The HX-QD 556 has a fully-welded outer body made of 17-4 heat treated stainless steel coated with C-series high temperature black Cerakote®.

Sound Pressure Levels:  The HX-QD 556 is the optimal choice for the widest range of 5.56 caliber rifles.  Sound pressure levels are measured at the shooters ear to comply with current military specifications:
  • 130 – 134 dB on 20” AR15 DI using commercial grade 55 gr ammo
  • 133 – 137 dB on 16” AR15 DI using commercial grade 55 gr ammo
  • 138 – 142 dB on 10.5” AR15 DI using commercial grade 55 gr ammo

1443

Knight’s Armament KAC KS3 SR-15 E3.2 11.5″ MLOK Upper Receiver Group

Knight’s Armament KAC KS3 SR-15 E3.2 11.5″ MLOK Upper Receiver Group

Item: 121437

The 11.5″ KS-3 is the next generation of SR-15s from Knight’s Armament, improving upon the Mod 2 with the new URX6 rail and fully ambidextrous controls.
The KAC KS-3 SR-15’s 11.5” chrome lined, 5.56mm NATO barrel is manufactured to military specifications, features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil, and is free-floated inside a 13” URX 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. On top of featuring a lobster-tail extractor for more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

A now fully ambidextrous bolt release, selector, and magazine release offer left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

Knight’s Armament KAC KS2 SR-15 E3.2 14.5″ MLOK SBR

Knight’s Armament KAC KS2 SR-15 E3.2 14.5″ MLOK SBR

Item: 121440

The 14.5″ KS-2 is the next generation of SR-15s from Knight’s Armament, improving upon the Mod 2 with the new URX6 rail and fully ambidextrous controls.
The KAC KS-2 SR-15’s 14.5” chrome lined, 5.56mm NATO barrel is manufactured to military specifications, features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil, and is free-floated inside a 13” URX 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. On top of featuring a lobster-tail extractor for more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

A now fully ambidextrous bolt release, selector, and magazine release offer left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

Marked ‘SR-15 SBR’ and ‘5.56mm’

Knight’s Armament KAC KS3 SR-15 E3.2 11.5″ MLOK SBR

Knight’s Armament KAC KS3 SR-15 E3.2 11.5″ MLOK SBR

Item: 121441

The 11.5″ KS-3 is the next generation of SR-15s from Knight’s Armament, improving upon the Mod 2 with the new URX6 rail and fully ambidextrous controls.
The KAC KS-3 SR-15’s 11.5” chrome lined, 5.56mm NATO barrel is manufactured to military specifications, features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil, and is free-floated inside a 13” URX 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. On top of featuring a lobster-tail extractor for more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

A now fully ambidextrous bolt release, selector, and magazine release offer left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

Marked ‘SR-15 SBR’ and ‘5.56mm’

Knight’s Armament KAC KS1 SR-15 E3.2 13.7″ MLOK SBR

Knight’s Armament KAC KS1 SR-15 E3.2 13.7″ MLOK SBR

Item: 121439 

The 13.7″ KS-1 is the next generation of SR-15s from Knight’s Armament and the current-issue service rifle of the Royal Marines.
The KAC KS-1 SR-15’s 13.7” chrome lined, 5.56mm NATO barrel is of a heavy profile and has ball dimples machined into the surface to increase rigidity for higher volumes of fire. It features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil, and is free-floated inside a 13” URX 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. On top of featuring a lobster-tail extractor for more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

A now fully ambidextrous bolt release, selector, and magazine release offer left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

Marked ‘SR-15 SBR’ and ‘5.56mm’