SALES-SPECIALS
BARRELED UPPERS
UPPER PARTS
LOWER PARTS


WELCOME TO OUR STORE!

MAS Defense is committed to providing "Quality Parts at Reasonable Prices!" Our foundation is built on excellent customer service, honesty and integrity. These simple guidelines are what has made MAS Defense the preferred company it is today.

Thank you for your business and support!
Team MAS Defense


local_shipping

SHIPPING LEAD TIMES

Parts ship in approximately (3-5) business days. Barreled Uppers ship in approximately (4-6) business days. Due to the high volume of orders, we can not change, cancel, modify, edit or combine orders after they are placed. E-mails can take up to 4 days to respond to.

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LOCAL PICKUP

Given the dynamic nature of the current situation, Local Pickup is no longer available. We apologize for the inconvenience.

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ORDERS

All of our inventory is LIVE DATA. If a part shows in stock, we have it in stock. We do not "Back Order" parts. Barreled Upper Orders can not be changed or modified in any way after they have been placed. Please contact us BEFORE  you place an order with any questions.


receipt

FRAUD POLICY

Due to increased fraudulent activity, customers with different billing and shipping addresses or credit card names will be required to submit a copy of their drivers license to confirm their identity. Once confirmed, customers will not have to resubmit on future orders. 

FEATURED PRODUCTS



POLYMER80 GLOCK 19/23 80% POLYMER LOWER RECEIVER - FLAT DARK EARTH (FDE) - P80-PF940CV1-FDE POLYMER80 GLOCK 19/23 80% POLYMER LOWER RECEIVER - FLAT DARK EARTH (FDE) - P80-PF940CV1-FDE
RETAIL: $160.00
Our Price: $149.99
In Stock
(33)
POLYMER80 PF-SERIES GLOCK TRIGGER AND SAFETY BLACK / BLACK - P80-CP-CT-BLK-BLK POLYMER80 PF-SERIES GLOCK ALUMINUM TRIGGER AND SAFETY BLACK / BLACK - P80-CP-CT-BLK-BLK
RETAIL: $115.00
Our Price: $94.99
SALE PRICE: $69.99
In Stock
(2)
GLOCK 19, 23 and 32 GEN 1-3 UPPER PARTS KIT GLOCK 19, 23 and 32 GEN 1-3 UPPER PARTS KIT
RETAIL: $75.00
Our Price: $64.99
In Stock
AERO PRECISION AR-15 ENHANCED M-LOK 15" HANDGUARD GEN 2 - APRA100218AS AERO PRECISION AR-15 ENHANCED M-LOK 15" HANDGUARD GEN 2 - APRA100218AS
RETAIL: $200.00
Our Price: $169.99
In Stock
GLOCK 17, 22, 31, 34 and 35 GEN 1-3 UPPER PARTS KIT GLOCK 17, 22, 31, 34 and 35 GEN 1-3 UPPER PARTS KIT
RETAIL: $80.00
Our Price: $68.99
In Stock
POLYMER80 GLOCK 19 STANDARD 9MM BARREL - DLC - P80-G19-S-DLC POLYMER80 GLOCK 19 STANDARD 9MM BARREL - DLC - P80-G19-S-DLC
RETAIL: $175.00
Our Price: $159.99
SALE PRICE: $139.00
In Stock
(1)
10" 300 BLACKOUT AR-15 1x7 BALLISTIC ADVANTAGE DRP PROFILE PISTOL LENGTH BARREL - MODERN BABL300006M 10" 300 BLACKOUT AR-15 1x7 BALLISTIC ADVANTAGE DRP PROFILE PISTOL LENGTH BARREL - MODERN BABL300006M
RETAIL: $165.00
Our Price: $159.99
In Stock
(2)
NORSSO TIGER CLAW 2.0 SLIDE FOR GLOCK 19 GEN 1-3 - N19-TC2-3 N19-TC2 NORSSO TIGER CLAW 2.0 SLIDE FOR GLOCK 19 GEN 1-3 - N19-TC2-3
RETAIL: $340.00
Our Price: $329.99
In Stock
80% FORGED LOWER RECEIVER - AR-15 80 PERCENT 80 % AR15 AR 15 80% FORGED LOWER RECEIVER AR15 - ANODIZED BLACK
RETAIL: $65.00
Our Price: $59.99
In Stock
(155)
16" 5.56 Ballistic Advantage Government Profile Mid-Length AR 15 Barrel - Modern Series - BABL556015M 16" 5.56 / .223 AR-15 1x7 BALLISTIC ADVANTAGE GOVERNMENT PROFILE MID-LENGTH BARREL - MODERN BABL556015M
RETAIL: $165.00
Our Price: $159.99
In Stock
(6)
18" AR-10 .308 1x10 BALLISTIC ADVANTAGE HEAVY PROFILE RIFLE LENGTH BARREL- MODERN BABL308007M 18" AR-10 .308 1x10 BALLISTIC ADVANTAGE HEAVY PROFILE RIFLE LENGTH BARREL- MODERN BABL308007M
RETAIL: $240.00
Our Price: $234.99
(Out of Stock)
(7)
MAS DEFENSE 9.87" RIDGELINE M-LOK AR-15 QUAD RAIL MAS DEFENSE 9.87" RIDGELINE M-LOK AR-15 QUAD RAIL
RETAIL: $130.00
Our Price: $114.99
In Stock
(1)
NORSSO REPTILE EDC CUT SLIDE FOR GLOCK 19 GEN 1-3 WITH RMR OPTIC CUT - N19-REP-EDC-3-RMR N19-REP-EDC NORSSO REPTILE EDC CUT SLIDE FOR GLOCK 19 GEN 1-3 WITH RMR OPTIC CUT - N19-REP-EDC-3-RMR
RETAIL: $460.00
Our Price: $449.99
In Stock
MAS DEFENSE 12.62" NERO M-LOK FREE FLOAT - FDE MAS DEFENSE 12.62" NERO M-LOK FREE FLOAT - FDE
RETAIL: $145.00
Our Price: $124.99
In Stock
(4)
MAS DEFENSE 7.25" RIDGELINE M-LOK AR-15 QUAD RAIL MAS DEFENSE 7.25" RIDGELINE M-LOK AR-15 QUAD RAIL
RETAIL: $120.00
Our Price: $104.99
In Stock
(2)
NORSSO SINGULARITY CUT SLIDE FOR GLOCK 19 GEN 1-3 - N19-SINGU-3 N19-SINGU NORSSO SINGULARITY CUT SLIDE FOR GLOCK 19 GEN 1-3 - N19-SINGU-3
RETAIL: $450.00
Our Price: $439.99
In Stock
POLYMER80 GLOCK 17 80% POLYMER LOWER RECEIVER BLACK -PF940v2-BLK POLYMER80 GLOCK 17/22 80% POLYMER LOWER RECEIVER BLACK - P80-PF940V2-BLK
RETAIL: $160.00
Our Price: $149.99
In Stock
(32)
MAS DEFENSE 12.62" NERO M-LOK FREE FLOAT MAS DEFENSE 12.62" NERO M-LOK FREE FLOAT
RETAIL: $130.00
Our Price: $109.99
In Stock
(5)
13.7 5.56 .223 AR-15 1x7 BALLISTIC ADVANTAGE GOVERNMENT PROFILE MID-LENGTH BARREL - MODERN BABL556033M 13.7" 5.56 / .223 AR-15 1x7 BALLISTIC ADVANTAGE GOVERNMENT PROFILE MID-LENGTH BARREL - MODERN BABL556033M
RETAIL: $160.00
Our Price: $154.99
In Stock
(1)
80% FORGED LOWER RECEIVER - AR-15 80 PERCENT 80 % AR15 AR 15 80% FORGED LOWER RECEIVER AR15 - RAW
RETAIL: $60.00
Our Price: $54.99
(Out of Stock)
(58)
LOWER PARTS KIT MIL-SPEC AR-15 - STAINLESS STEEL LOWER PARTS KIT MIL-SPEC AR-15 - STAINLESS STEEL
RETAIL: $55.00
Our Price: $52.99
SALE PRICE: $47.99
In Stock
(101)
POLYMER80 GLOCK 19 FLUTED 9MM BARREL - STAINLESS STEEL - P80-G19-F-SS POLYMER80 GLOCK 19 FLUTED 9MM BARREL - STAINLESS STEEL - P80-G19-F-SS
RETAIL: $185.00
Our Price: $169.99
SALE PRICE: $149.99
In Stock
NORSSO REPTILE PORTED CUT SLIDE FOR GLOCK 17 GEN 1-3 WITH RMR OPTIC CUT - N17-REP-PORT-3 N17-REP-PORT NORSSO REPTILE PORTED CUT SLIDE FOR GLOCK 17 GEN 1-3 WITH RMR OPTIC CUT - N17-REP-PORT-3
RETAIL: $450.00
Our Price: $439.99
(Out of Stock)
16" .300 Blackout Ballistic Advantage DRP Profile Pistol Length AR-15 Barrel - Modern Series - BABL300011M 16" 300 BLACKOUT AR-15 1x7 BALLISTIC ADVANTAGE DRP PROFILE PISTOL LENGTH BARREL - MODERN BABL300011M
RETAIL: $180.00
Our Price: $174.99
In Stock
(4)