-
KAC 5.56mm QDC/MCQ-PRT – 1
$1,645.88KAC’s newest answer for a superior rifle suppressor — 3D printed and incorporating their Pressure Reduction Technology (PRT)
KAC PN 119354-BLK & 119354-FDEConnects to all 5.56 QDC Muzzle Devices. Available in Black and Flat Dark Earth (-BLK) (-FDE).
Specifications
Addition to Bare Muzzle: 3.85″ (9.78cm)
Addition to QDC 3-prong FH: 2.33″ (5.92cm)
Overall Length: 4.43″ (11.25cm)
Weight: 13.9oz (395g)
Sound Reduction: 12dB -
KAC 5.56mm QDC/MCQ-PRT Suppressor – Black [NFA]
$1,645.88Connects to all 5.56 QDC Muzzle Devices. Available in Black and Flat Dark Earth (-BLK) (-FDE).
Specifications
Addition to Bare Muzzle: 3.85″ (9.78cm)
Addition to QDC 3-prong FH: 2.33″ (5.92cm)
Overall Length: 4.43″ (11.25cm)
Weight: 13.9oz (395g)
Sound Reduction: 12dB -
KAC SR-25 Complete Lower Receiver Assembly
The long-awaited SR-25 standalone complete lower receiver assembly is here!
These are built complete to the same exacting standards and specifications as those on complete SR-25 rifles. An ambidextrous bolt release, selector, and magazine release offer the left-handed user the ergonomic advantages inherent to AR15 based controls, as well as giving right-handed users alternate methods of manipulation to increase efficiency of movement. The Drop-In 2-Stage Trigger serves double duty as an aid to long range precision marksmanship while enabling surgical speed shooting at close range.
Marked “RIFLE 7.62 MM” and “SR 25”
Lower ships fully built with lower parts, HH buffer (PN 21057), action spring and trigger, but without stock.
-
Knight’s Armament Company Silencer Crs Dsr Prg Fde
SUPPRESSOR, KIT, 7.62, CRS, DSR, PRG, FDE 3/4×24
-
Knight’s Armament Company Silencer Crs Dsr Prg Blk
$1,496.25SUPPRESSOR, KIT, 7.62, CRS, DSR, PRG, BLACK
120333-blk
-
KAC Lower Receiver Assembly Kit, SR-30 IWS
The ambidextrous bolt release, selector lever, and magazine release offers left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in KAC two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range.
-
KAC Lower Receiver Assembly Kit, SR-15 IWS
The ambidextrous bolt release, selector lever, and magazine release offers left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in KAC two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range.
Marked ‘SR-15’ and ‘5.56mm’. Lowers are now shipping with Magpul stocks.
-
KAC Piston Assembly, MK23 Suppressor, M16X1 RH TPI
Replacement right hand piston assembly for KAC MK23 suppressors
-
KAC Enhanced Compensator Kit (Triple Tap), 5.56mm
$591.383D printed made out of Inconel. Includes shim kit with Rocksett.
-
KAC SR-25 E2 Complete Bolt Assembly
$589.99Knight’s Armament SR-25 E2 complete bolt assembly. Includes a complete bolt with extractor, ejector and gas rings.
-
Knight’s Armament Company Mk12 Mod 1 Free Float Ras 21318
$427.50Knights Armament FREE FLOAT RIFLE RAS (MK 12 MOD 1), 5.56, W/ THREE 11-RIB PANELS The KAC Rifle Length Free Float RAS (Rail Adapter System) features full length mil-spec M1913 Picatinny rails at the 12-, 3-, 6-, and 9 o’clock positions, making it compatible with any number of rail-mounted tactical accessories. The rail free floats the barrel, allowing for consistent barrel harmonics upon firing, and thus increased accuracy potential. Includes three KAC 11 Rib Rail Panels. Rifle Requirements: This Free Float RAS requires that the rifle have a carbine or mid length gas system and a low-profile gas block. Disassembly of the rifle’s gas system and removal of the factory barrel nut will be necessary. This fore end uses a proprietary barrel nut that may be installed using a standard AR-15 armorer’s barrel nut wrench (sold separately). For AR-15/SR-15 based platforms only; not compatible with SR-25 variants. Installation instructions are included. Specifications Weight: 16.3oz Length: 12?
-
Knight’s Armament Company 30mm Scope Mt Black 1.5″
This KAC 30mm 1-Piece Scope Mount is constructed of lightweight aluminum and is compatible with any Picatinny-type top rail. It is the scope mount that was developed for use in the M110 SASS rifle package. Attaches via a pair of 1/2? bolts. Available in Black or Taupe.
Ring Size: 30mm
Ring Height: 1.5?
Material: Aluminum

![KFA_2025_Classic Logo_Red [HIREZ-FINAL01]](https://kfarmory.com/wp-content/uploads/2025/06/KFA_2025_Classic-Logo_Red-HIREZ-FINAL01-1-scaled.png#117002)







![KAC 5.56mm QDC/MCQ-PRT Suppressor - Black [NFA]](https://kfarmory.com/wp-content/uploads/2024/10/KAC_119354-BLK_Silencer-556-MCQ-QDC-PRT-WEB.jpg)









