Welcome.

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


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SHIPPING

Current Lead Times in BUSINESS DAYS:

Parts (3-5) days. 

Barreled Uppers (4-7) days.

E-mails can take 24-48 hours to respond to at this time.

Orders CANNOT be cancelled once they reach the "processing" stage.

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STATE & AGE RESTRICTIONS

Please click HERE for updated information.

- Fraud Policy

- Banned States, Cities, Boroughs etc.

- Age Requirement

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INVENTORY

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 CANNOT be changed or modified in any way after they have been placed. Please contact us BEFORE  you place an order with any questions.


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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 driver's license to confirm their identity. Once confirmed, customers will not have to resubmit on future orders. 

FEATURED PRODUCTS



POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BATTLEWORN NRA BLUE MPN: P80-PS9C-STD-BN-CKNRBLUE COMPACT G19 DISTRESSED P80 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BATTLEWORN NRA BLUE
MSRP: $345.00
Our Price: $274.99
SALE PRICE: $134.99
In Stock

(1)
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE AZTEC TEAL TURQUOISE P80-PS9C-STD-BN-CKAZTEL P80-PS9C-STD-BN P80 COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE AZTEC TEAL
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 80% POLYMER LOWER RECEIVER GLOCK 19 FITMENT - BLACK - P80-PF940CV1-BLK POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE WHITE
MSRP: $140.00
Our Price: $109.99
SALE PRICE: $84.99
(Out of Stock)
(17)
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE P80 GRAY GREY MPN: P80-PS9C-STD-BN-CKP80GRY COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE P80 GRAY
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 80% FRAME ONLY COMPACT G17 / G22 PF940V2 P80-BKS - CERAKOTE BURNT BRONZE P80-FOBC-CKBRBNZ P80 GLOCK 17 GLOCK 22 POLYMER80 80% FRAME ONLY STANDARD G17 / G22 PF940S P80-BKS - CERAKOTE BURNT BRONZE
MSRP: $140.00
Our Price: $109.99
SALE PRICE: $84.99
(Out of Stock)
(1)
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE ZOMBIE GREEN P80-PS9C-STD-BN-CKZBGRN P80-PS9C-STD-BN P80 COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE ZOMBIE GREEN
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 80% PISTOL FRAME KIT WITH JIG FULL SIZE G17 / G22 PF940S P80-PF940V2-COB COBALT + JIG Glock 17 Glock 22 P80 POLYMER80 80% PISTOL FRAME KIT WITH JIG FULL SIZE G17 / G22 PF940S P80-PF940V2-COB - COBALT + JIG
MSRP: $159.00
Our Price: $139.99
In Stock

(3)
POLYMER80 80% PISTOL FRAME KIT WITH JIG SUB-COMPACT G26 / G27 PF940SC P80-PF940SC-FDE - FLAT DARK EARTH + JIG Glock 26 Glock 27 P80 POLYMER80 80% PISTOL FRAME KIT WITH JIG SUB-COMPACT G26 / G27 PF940SC P80-PF940SC-FDE - FLAT DARK EARTH + JIG
MSRP: $159.00
Our Price: $139.99
(Out of Stock)
(19)
POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE CRIMSON RED DEADPOOL P80-FOBC-CKCRRED P80 GLOCK 19 GLOCK 23 POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE CRIMSON RED
MSRP: $140.00
Our Price: $109.99
SALE PRICE: $84.99
In Stock

(12)
SIG SAUER P320 SLIDE PARTS KIT - 9mm STRIKER ASSEMBLY COMPLETION KIT EJECTOR MAS DEFENSE SIG SAUER P320 SLIDE PARTS KIT - 9MM
MSRP: $100.00
Our Price: $89.99
SALE PRICE: $74.99
In Stock
AR-15 P5C PISTOL BUFFER TUBE - KIT OPTIONS AVAILABLE AR-15 P5C PISTOL BUFFER TUBE - KIT OPTIONS AVAILABLE
MSRP: $25.00
Our Price: $19.99
SALE PRICE: $12.99
In Stock

(34)
POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE BATTLEWORN CRIMSON RED DEADPOOL P80 DISTRESSED GLOCK 19 GLOCK 23 POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE BATTLEWORN CRIMSON RED
MSRP: $170.00
Our Price: $129.99
SALE PRICE: $94.99
In Stock

(1)
POLYMER80 PF320 PTEX GRIP MODULE / FRAME FOR SIG SAUER P320 - P80-PF320-GRY - GRAY GREY POLYMER80 PF320 PTEX GRIP MODULE / FRAME FOR SIG SAUER P320 - P80-PF320-GRY - GRAY
MSRP: $64.00
Our Price: $59.99
SALE PRICE: $49.99
In Stock
POLYMER80 SUB-COMPACT 9MM BARREL GLOCK 26 FITMENT - THREADED FLUTED GOLD TIN P80-PFSC9-TH-F-TIN P80-BRL-PFSC9-THF-TIN POLYMER80 SUB-COMPACT 9MM BARREL GLOCK 26 FITMENT - THREADED FLUTED GOLD TIN P80-BRL-PFSC9-THF-TIN
MSRP: $195.00
Our Price: $179.99
SALE PRICE: $79.99
In Stock

(1)
POLYMER80 PF320 PTEX GRIP MODULE / FRAME FOR SIG SAUER P320 - P80-PF320-FDE - FLAT DARK EARTH POLYMER80 PF320 PTEX GRIP MODULE / FRAME FOR SIG SAUER P320 - P80-PF320-FDE - FLAT DARK EARTH
MSRP: $64.00
Our Price: $59.99
SALE PRICE: $49.99
In Stock
POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE BATTLEWORN BRIGHT PURPLE P80 PF940C GLOCK 19 GLOCK 23 POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE BATTLEWORN BRIGHT PURPLE
MSRP: $170.00
Our Price: $129.99
SALE PRICE: $94.99
In Stock
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE OD GREEN MPN: P80-PS9C-STD-BN-CKODG COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE P80 OD GREEN
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C BLACK NITRIDE - RMR OPTIC CUT - P80-PS9C-OCS-BN G17 STANDARD FULL SIZE POLYMER80 9MM STRIPPED SLIDE SIG P320 COMPACT FITMENT P80 BLACK NITRIDE - RMR OPTIC CUT - P80-PS320-C-OCS-BN
MSRP: $300.00
Our Price: $264.99
SALE PRICE: $149.99
In Stock
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE MULTICAM RED MPN: P80-PS9C-STD-BN-CKMCRED COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE MULTICAM RED
MSRP: $400.00
Our Price: $339.99
SALE PRICE: $169.99
(Out of Stock)
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BATTLEWORN WHITE DISTRESSED P80-PS9C-STD-BN-CKBWWHT POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BATTLEWORN WHITE
MSRP: $345.00
Our Price: $274.99
SALE PRICE: $134.99
In Stock

(2)
POLYMER80 SUB-COMPACT 9MM BARREL GLOCK 26 FITMENT - THREADED FLUTED STAINLESS STEEL P80-PFSC9-TH-F-STS P80-BRL-PFSC9-THF-STS POLYMER80 SUB-COMPACT 9MM BARREL GLOCK 26 FITMENT - THREADED FLUTED STAINLESS STEEL P80-BRL-PFSC9-THF-STS
MSRP: $185.00
Our Price: $169.99
SALE PRICE: $69.99
In Stock
MAS DEFENSE 9MM COLD HAMMER FORGED STEEL BARREL - GLOCK 19 FITMENT - GOLD TiN MAS DEFENSE 9MM COLD HAMMER FORGED STEEL BARREL - GLOCK 19 FITMENT - GOLD TiN
MSRP: $140.00
Our Price: $119.99
SALE PRICE: $67.99
In Stock

(2)
SIG SAUER P320 FRAME PARTS KIT LPK FLAT TRIGGER - 9MM / .40 S&W / .357 SIG LOWER PARTS KIT MAS DEFENSE SIG SAUER P320 FRAME PARTS KIT LPK FLAT TRIGGER - 9MM / .40 S&W / .357 SIG
MSRP: $150.00
Our Price: $139.99
SALE PRICE: $119.99
In Stock
POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE BATTLEWORN ZOMBIE GREEN P80 PF940C GLOCK 19 GLOCK 23 POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE BATTLEWORN ZOMBIE GREEN
MSRP: $170.00
Our Price: $129.99
SALE PRICE: $94.99
In Stock