Achieve superior signature reduction and decibel mitigation with KAC silencers and quick-disconnect (QD) muzzle devices, engineered for minimal point-of-impact shift.
KAC Suppressors and QD Muzzle Devices
Knights Armament has designed suppressors for the U.S. military for decades. Boss Firearms stocks KAC 5.56 and 7.62 suppressors, including the QDC/CRS series, the QDSS-NT4 and the Q-NT4 M4QD, in black and FDE.
KAC suppressors attach to the matching QDC flash suppressor or muzzle brake, so you can move one can between rifles and keep a consistent point of impact. Our combo kits include the suppressor and a 3-prong QDC flash suppressor.
How buying a suppressor works: Suppressors are NFA items. After you order, the suppressor ships to your local FFL/SOT dealer. You file an ATF Form 4 with fingerprints, then pick it up once the form is approved. Call 979-704-6269 if you have questions about the process.
Shop more suppressors, including SureFire and Q, or see integrally suppressed firearms. Pair your can with a KAC rifle or extra muzzle devices. Layaway is available on suppressors.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out of stockOn Sale
Knight's Armament - 5.56 Silencer - MCQ/QDC-PRT - #119354
Knights Armament Company
Now: $1,246.88Was: $1,275.00KAC’s Pressure Reduction Technology (PRT) Signature Reduction Device line blends the proven durability and acoustic performance of the previous generation of KAC suppressors with pressure reduction...Now: $1,246.88Was: $1,275.00 -
Out of stock
Knight's Armament -CO QDC/CRS-PRT 5.56 Suppressor + 5.56 QDC 3-Prong Flash Suppressor Kit, #121567-30555COMBO
Knights Armament Company
$1,895.50COMBO: QDC/CRS-PRT 5.56 Suppressor + .56 QDC 3-Prong Flash Suppressor Kit KAC’s Pressure Reduction Technology (PRT) Signature Reduction Device line blends the proven durability and acoustic...$1,895.50 -
Out of stock
Knight's Armament - CO QDC/CRS-PRT 5.56 Suppressor - 121567-BLK
Knights Armament Company
$1,312.50KAC’s Pressure Reduction Technology (PRT) Signature Reduction Device line blends the proven durability and acoustic performance of the previous generation of KAC suppressors with pressure reduction...$1,312.50 -
Out of stock
Knight's Armament - CO QDC/CRS-PRG 7.62 Suppressor - 121568-FDE
Knights Armament Company
$1,425.00KAC’s new PRG system Signature Reduction Device line uses the blast pulse of the contained pressure to mechanically remove the combustible environment from the suppressor and eliminate first round...$1,425.00 -
Out of stock
Knight's Armament - 5.56 Silencer - MCQ/QDC-PRT + 5.56 QDC 3-Prong Flash Suppressor Kit - #119354-30555-COMBO
Knights Armament Company
$1,745.88COMBO: MCQ/QDC-PRT 5.56 Suppressor + .56 QDC 3-Prong Flash Suppressor Kit  KAC’s Pressure Reduction Technology (PRT) Signature Reduction Device line blends the proven durability and acoustic...$1,745.88 -
Out of stockOn Sale
Knight’s Armament QDSS-NT4 PRG 5.56 Rifle Silencer - FDE - #121569
Knights Armament Company
Now: $939.00Was: $1,350.00The KAC QDSS NT4-PRT/PRG Sound Suppressor mounts to M4QD line of muzzle devices. The QDSS NT4(Combat Rifle Suppressor) features PRT/PRG(Pressure Reduction Technology) which vents pressure away from...Now: $939.00Was: $1,350.00 -
Knight’s Armament - QDSS-NT4 PRG 5.56 Rifle Suppressor - Black - 121569
Knights Armament Company
$1,312.78The Knight's Armament QDSS-NT4 PRG 5.56mm Rifle Suppressor — Black (KAC PN: 121569) is KAC's QDSS NT-4 PRG (Prong) suppressor for 5.56mm rifles equipped with the KAC 3-Prong QDC muzzle device (PN:...$1,312.78 -
Out of stock
Knight’s Armament - 5.56mm Q-NT4 M4QD Rifle Suppressor FDE - #96062-2
Knights Armament Company
$1,864.86This Legacy suppressor has been used by U.S. Military, LE agencies and perfect for any GWOT era clones. Compatible with KAC M4QD and Triple Tap muzzle devices, it is made of stainless steel and...$1,864.86 -
Out of stock
Knight’s Armament - 5.56mm Legacy Q-NT4 M4QD Rifle Suppressor - #96062-1
Knights Armament Company
$1,864.86This Legacy silencer has been used by U.S. Military, LE agencies and is perfect for GWOT era clones. Compatible with KAC M4QD and Triple Tap muzzle devices, it is made of stainless steel and Inconel,...$1,864.86 -
Knight's Armament - CO QDC/CRS-PRT 5.56 Suppressor - 121567-FDE
Knights Armament Company
$1,312.50The Knight's Armament CO QDC/CRS-PRT 5.56mm Suppressor — FDE (KAC PN: 121567-FDE) is KAC's CRS (Combat Ready Suppressor) with QDC attachment system for 5.56mm rifles, finished in Flat Dark Earth. The...$1,312.50 -
Out of stockOn Sale
Knight's Armament - CO QDC/CRS-PRG 7.62 Suppressor - #121568-BLK
Knights Armament Company
MSRP: $1,425.00Now: $1,353.75Was: $1,425.00KAC’s new PRG system Signature Reduction Device line uses the blast pulse of the contained pressure to mechanically remove the combustible environment from the suppressor and eliminate first round...MSRP: $1,425.00Now: $1,353.75Was: $1,425.00Qty in Cart: 0Quantity:Price:MSRP: $1,425.00Now: $1,353.75Was: $1,425.00Subtotal: