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"Precision AR parts and muzzle devices"

JMac Customs makes precision hardware for modern sporting rifles, including muzzle devices, gas blocks, and folding stock solutions. Known for quality machining and practical designs.

Shop All JMac Customs Products

113

Products

In Stock

Founded

USA

Origin

All JMac Customs Products (37)

JMac CUSTOMS 6-INCH SKELETONIZED TUBE WITH JMAC 1913 FOLDING MECH

JMac CUSTOMS 8-INCH SKELETON STOCK STOCK FOR SAM7SF

JMac CUSTOMS 8-INCH SKELETON STOCK STOCK FOR 5.5MM FOLDING AKS

JMac CUSTOMS 8-INCH SKELETON STOCK STOCK FOR 4.5MM FOLDING AKS

JMac Customs RSA SF 1913 Rail Adapter Tactical Upgrade

JMac CUSTOMS RAILED STOCK ADAPTERMODULAR REAR KALASHNIKOV TRUNNION ADAPTE

JMac CUSTOMS RAILED STOCK ADAPTERMP5K 1913 ADAPTER

JMac CUSTOMS RAILED STOCK ADAPTERMP5 1913 ADAPTER

JMac CUSTOMS RAILED STOCK ADAPTERAKP

JMac CUSTOMS RAILED STOCK ADAPTERAKM STAMPED RECEIVER

JMac CUSTOMS RRD X12 2 PORT COMPENSATOR 1/2-36"

JMac CUSTOMS RECOIL REDUCTION DEVICE 2 PORT COMP 36S KEYMOUNT (KEYMO)

JMac CUSTOMS RRD X20 2 PORT COMPENSATOR 5/8-24"

JMac CUSTOMS RRD 2 PORT X12 COMPENSATOR 45 CAL 5/8-24"

JMAC CUSTOMS RECOIL REDUCTION DEVICE 2 PORT COMP 30S KEYMOUNT (KEYMO)

JMac CUSTOMS RRD X20 2 PORT COMPENSATOR 1/2-28"

JMac CUSTOMS RECOIL REDUCTION DEVICE 2 PORT COMP 28S KEYMOUNT (KEYMO)

JMac CUSTOMS RECOIL REDUCTION DEVICE 2 PORT COMP 15F KEYMOUNT (KEYMO)

JMac CUSTOMS RRD 2 PORT COMPENSATOR 14 SLIM 14-1LH

JMac CUSTOMS RRD X20 2 PORT COMPENSATOR M14X1LH

JMac CUSTOMS RECOIL REDUCTION DEVICE 2 PORT COMP 14F KEYMOUNT (KEYMO)

JMac CUSTOMS RAILED STOCK ADAPTERYFS

JMac CUSTOMS MODULAR REAR KALASHNIKOV TRUNNION ADAPTER-AKMS

JMac CUSTOMS M4-AK MILLED RECEIVER

JMac CUSTOMS LOUD AND FLASHY 28 MUZZLE BRAKE1/2X28MM THREADS

JMac CUSTOMS LOUD AND FLASHY 24 MUZZLE BRAKE 24X1/2MM THREADS

JMac CUSTOMS HAND RETENTION DEVICE HANDSTOP

JMac CUSTOMS GAS BLOCK COMBO WITHOUT DETENT HOLE - ADJUSTABLE

JMac CUSTOMS GAS BLOCK COMBO WITHOUT DETENT HOLE

JMac Customs GBC-13-W Detent Hole Gas Block Combo

JMac CUSTOMS BLAST DIVERSION SHIELD 37 MUZZLE BREAK

JMac CUSTOMS AB-8R WITH FOLDING BUTTPLATE & JMAC 1913 FOLDING MECH TAN

JMac CUSTOMS SFG M-LOK SKELETON FORWARD GRIP TAN

JMac CUSTOMS SFG M-LOK SKELETON FORWARD GRIP BLACK

JMac CUSTOMS HAND RETENTION DEVICE EXTENDED HANDSTOP TAN

JMac CUSTOMS HAND RETENTION DEVICE EXTENDED HANDSTOP BLACK

JMac Customs AB-9R Arm Bar Tan Small Rifle Accessory

About JMac Customs

JMac Customs focuses on precision machined components for AR-style rifles. Their lineup includes muzzle brakes and blast diversion shields, a range of gas block assemblies, and folding buttplate and adapter solutions that improve rifle ergonomics and portability. The brand emphasizes durable materials and practical features that integrate with common common-rail platforms. Products are designed to meet the needs of shooters and builders looking for reliable function and straightforward installation. JMac Customs items cover basic gas system components and accessory hardware that enhance control, reduce felt recoil and manage muzzle blast while offering options for adjustable or foldable configurations.

Headquarters

Established

Country of Origin

USA

History & Heritage

Specific founding details for JMac Customs are not available here. The brand emerged to serve the AR parts market with focused offerings in muzzle devices, gas blocks, and folding stock hardware.

Notable Products

Notable lines include muzzle brakes and blast diversion shields, several gas block combo options, and folding buttplate and 1913 folding mechanical adapters.