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*** NEW YEAR SALE ***
BLEM SALE
MAS DEFENSE
POLYMER80
BALLISTIC ADVANTAGE
FAXON FIREARMS
G-FLEX TRIGGERS
MAGPUL
MISSION FIRST TACTICAL
NORSSO SLIDES
ROCK RIVER ARMS
SB TACTICAL
SYLVAN ARMS
UTG / LEAPERS
BRANDS
A - L
AERO PRECISION
ATRIUS RESET SELECTORS
BALLISTIC ADVANTAGE
FAXON FIREARMS
G80 80% BUILDER KIT
G-FLEX TRIGGERS
GEISLER DEFENCE
HOLOSUN
JSD SUPPLY
M - Z
***MAS DEFENSE***
MAGPUL
MISSION FIRST TACTICAL
NORSSO SLIDES
NORTH SIDE KNIVES
POLYMER80
ROCK RIVER ARMS
SB TACTICAL
SHOCKWAVE - KAK
SLIDE FIRE BUMP STOCKS
SYLVAN ARMS
UTG / LEAPERS
AR-9
9MM BARRELED UPPERS
5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
AR-9 BUILD KITS
AR-9 UPPER PARTS
AR-9 LOWER PARTS
AR-15
AR-15 BARRELED UPPERS
5.56 NATO / .223
7.5" - 8" 5.56 NATO
10.5" 5.56 NATO
11.5" 5.56 NATO
13.9" 5.56 NATO
14.5" 5.56 NATO
16" 5.56 NATO
18" 5.56 NATO
.223 WYLDE
16" .223 WYLDE
18" .223 WYLDE
20" .223 WYLDE
300 BLACKOUT
6" 300 AAC BLACKOUT
7.5" 300 AAC BLACKOUT
8.5" 300 AAC BLACKOUT
10.5" 300 AAC BLACKOUT
16" 300 AAC BLACKOUT
AR-15 BUILD KITS
AR-15 UPPER PARTS
AR-15 UPPER RECEIVERS
AR-15 BARRELS
5.56 NATO BARRELS
.223 WYLDE BARRELS
300 BLACKOUT BARRELS
AR-15 BCG's / CHARGING HANDLES
HANDGUARDS
ALL HANDGUARDS
ACCESSORIES
DROP IN
4"-5" PISTOL
7" CARBINE
9"-10" SPECTER
11"-13" RIFLE
15"+ EXT RIFLE
AR-15 GAS BLOCKS / TUBES
AR-15 MUZZLE DEVICES
1/2 x 28 TPI
1/2 x 36 TPI
5/8 x 24 TPI
THREAD CONVERTERS
AR-15 LOWER PARTS
LOWER PARTS AND KITS
STOCK PARTS - STOCKS - ARM BRACES
PISTOLS - ARM BRACES
RIFLES - STOCKS
80% LOWERS
POLYMER 80% LOWERS
FORGED 80% LOWERS
BILLET 80% LOWERS
AR-10
AR-10 BARRELED UPPERS
AR-10 UPPER PARTS
AR-10 UPPER RECEIVERS
AR-10 BARRELS
AR-10 BCG's / CHARGING HANDLES
AR-10 HANDGUARDS
AR-10 GAS BLOCK / GAS TUBES
AR-10 MUZZLE DEVICES
AR-10 LOWER PARTS
AR-10 LOWER PARTS KITS
AR-10 STOCKS - PARTS
AR-10 80% LOWERS
GLOCK STYLE PARTS
SLIDE PARTS
BARRELS
G43 BARRELS
G26 BARRELS
G19 BARRELS
G17 BARRELS
G22 BARRELS
SLIDES & PARTS
G43 SLIDES & PARTS
G26 SLIDES & PARTS
G19 SLIDES & PARTS
G17 SLIDES & PARTS
FRAME PARTS
G43 FRAME PARTS
G26/27 FRAME PARTS
G19/23 FRAME PARTS
G17/22 FRAME PARTS
G20/21 FRAME PARTS
76% - 80% FRAMES & JIGS
P80 JIGS
G43 SINGLE STACK
G26/27 SUB-COMPACT
G19/23/32 COMPACT
G17/22 FULL SIZE
G20/21 SF XL SIZE
3D PRINTED FRAME PARTS
SIG SAUER
SIG P320 SLIDE PARTS
SIG P320 FRAME PARTS
80% INSERTS & JIGS
SIGHTS
SIGHTS
OPTICS
TOOLS
TOOLS
KNIVES
SWAG
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Charlotte, NC 28217
980-265-1005
[email protected]
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*** NEW YEAR SALE ***
BLEM SALE
MAS DEFENSE
POLYMER80
BALLISTIC ADVANTAGE
FAXON FIREARMS
G-FLEX TRIGGERS
MAGPUL
MISSION FIRST TACTICAL
NORSSO SLIDES
ROCK RIVER ARMS
SB TACTICAL
SYLVAN ARMS
UTG / LEAPERS
BRANDS
A - L
AERO PRECISION
ATRIUS RESET SELECTORS
BALLISTIC ADVANTAGE
FAXON FIREARMS
G80 80% BUILDER KIT
G-FLEX TRIGGERS
GEISLER DEFENCE
HOLOSUN
JSD SUPPLY
M - Z
***MAS DEFENSE***
MAGPUL
MISSION FIRST TACTICAL
NORSSO SLIDES
NORTH SIDE KNIVES
POLYMER80
ROCK RIVER ARMS
SB TACTICAL
SHOCKWAVE - KAK
SLIDE FIRE BUMP STOCKS
SYLVAN ARMS
UTG / LEAPERS
AR-9
9MM BARRELED UPPERS
5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
AR-9 BUILD KITS
AR-9 UPPER PARTS
AR-9 LOWER PARTS
AR-15
AR-15 BARRELED UPPERS
5.56 NATO / .223
7.5" - 8" 5.56 NATO
10.5" 5.56 NATO
11.5" 5.56 NATO
13.9" 5.56 NATO
14.5" 5.56 NATO
16" 5.56 NATO
18" 5.56 NATO
.223 WYLDE
16" .223 WYLDE
18" .223 WYLDE
20" .223 WYLDE
300 BLACKOUT
6" 300 AAC BLACKOUT
7.5" 300 AAC BLACKOUT
8.5" 300 AAC BLACKOUT
10.5" 300 AAC BLACKOUT
16" 300 AAC BLACKOUT
AR-15 BUILD KITS
AR-15 UPPER PARTS
AR-15 UPPER RECEIVERS
AR-15 BARRELS
5.56 NATO BARRELS
.223 WYLDE BARRELS
300 BLACKOUT BARRELS
AR-15 BCG's / CHARGING HANDLES
HANDGUARDS
ALL HANDGUARDS
ACCESSORIES
DROP IN
4"-5" PISTOL
7" CARBINE
9"-10" SPECTER
11"-13" RIFLE
15"+ EXT RIFLE
AR-15 GAS BLOCKS / TUBES
AR-15 MUZZLE DEVICES
1/2 x 28 TPI
1/2 x 36 TPI
5/8 x 24 TPI
THREAD CONVERTERS
AR-15 LOWER PARTS
LOWER PARTS AND KITS
STOCK PARTS - STOCKS - ARM BRACES
PISTOLS - ARM BRACES
RIFLES - STOCKS
80% LOWERS
POLYMER 80% LOWERS
FORGED 80% LOWERS
BILLET 80% LOWERS
AR-10
AR-10 BARRELED UPPERS
AR-10 UPPER PARTS
AR-10 UPPER RECEIVERS
AR-10 BARRELS
AR-10 BCG's / CHARGING HANDLES
AR-10 HANDGUARDS
AR-10 GAS BLOCK / GAS TUBES
AR-10 MUZZLE DEVICES
AR-10 LOWER PARTS
AR-10 LOWER PARTS KITS
AR-10 STOCKS - PARTS
AR-10 80% LOWERS
GLOCK STYLE PARTS
SLIDE PARTS
BARRELS
G43 BARRELS
G26 BARRELS
G19 BARRELS
G17 BARRELS
G22 BARRELS
SLIDES & PARTS
G43 SLIDES & PARTS
G26 SLIDES & PARTS
G19 SLIDES & PARTS
G17 SLIDES & PARTS
FRAME PARTS
G43 FRAME PARTS
G26/27 FRAME PARTS
G19/23 FRAME PARTS
G17/22 FRAME PARTS
G20/21 FRAME PARTS
76% - 80% FRAMES & JIGS
P80 JIGS
G43 SINGLE STACK
G26/27 SUB-COMPACT
G19/23/32 COMPACT
G17/22 FULL SIZE
G20/21 SF XL SIZE
3D PRINTED FRAME PARTS
SIG SAUER
SIG P320 SLIDE PARTS
SIG P320 FRAME PARTS
80% INSERTS & JIGS
SIGHTS
SIGHTS
OPTICS
TOOLS
TOOLS
KNIVES
SWAG
Return to AR-15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON
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0 of 0 people found the following review helpful:
my second BCG, not my last
November 26, 2023
: Eric M from Cedar Park, TX United States
Mas D delivers a great product at a great price for this layman 2A builder; components such as this add quality and class over standard kit
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0 of 0 people found the following review helpful:
August 20, 2023
: sean huzell from Fort Lauderdale, FL United States
Bcg looked great
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0 of 0 people found the following review helpful:
Nickel Boron BCG
May 10, 2023
: from Odessa, FL United States
I ordered this Nickel Boron BCG for a custom .300 BLK pistol build and I'm very pleased with the product. MAS Defense filled my order quickly and it was delivered within days. The price was the best I could find anywhere. Thanks!
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0 of 0 people found the following review helpful:
BCG
April 12, 2023
: Hunter Rutledge
Always had good experiences with MAS, I own a few uppers/parts etc. Quality is there for an extremely fair price point. This BCG looks and functions as it should. Looks pretty slick to.
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0 of 0 people found the following review helpful:
Nickel Boron BCG
April 11, 2023
: Joseph E Metzler from Gretna, LA United States
Was easy to order. Shipped fast and came to me fast. Looks great. Haven't shot it yet but looks great
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1 of 1 people found the following review helpful:
March 10, 2023
: Tom Blackburn from Salisbury, NC United States
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1 of 1 people found the following review helpful:
Great quality
March 1, 2023
: Justin Jackson from Kennesaw, GA United States
I recently ordered a bcg for my 300 blackout build. The shipping was fast and the quality and looks of the bcg is excellent
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0 of 0 people found the following review helpful:
February 2, 2023
: Tim Bateman from Clyde Township, MI United States
Have used mas defense bolt carriers in the past, thousands of rounds with no malfunctions, no reason to change.
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0 of 0 people found the following review helpful:
Best on market
July 2, 2022
: Chris Jones from Albuquerque, NM United States
Really outstanding service and quality!! All their products are a cut above
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0 of 0 people found the following review helpful:
Top notch
June 22, 2022
: Ryan Johnston from Turners falls, MA United States
super fast shipping, great product
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