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 (1-3) days. 

Barreled Uppers (2-4) 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.

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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 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.


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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



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

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POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C BLACK NITRIDE - P80-PS9C-STD-BN COMPACT G19 POLYMER80 9MM SLIDE KIT GLOCK 19 FITMENT GEN 3 P80 PF940C BLACK NITRIDE
MSRP: $365.00
Our Price: $314.99
SALE PRICE: $199.99
In Stock
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE CRIMSON RED MPN: P80-PS9C-STD-BN-CKCRRED COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE CRIMSON RED
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock

(1)
POLYMER80 GLOCK 17 80% POLYMER LOWER RECEIVER BLACK -PF940v2-BLK POLYMER80 80% LOWER FRAME FULL SIZE G17 / G22 PF940S P80-BKS-BLK - BLACK
MSRP: $149.00
Our Price: $109.99
SALE PRICE: $99.99
In Stock

(158)
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 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE MULTICAM FLAT DARK EARTH MPN: P80-PS9C-STD-BN-CKMCRED COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE MULTICAM FDE FLAT DARK EARTH
MSRP: $400.00
Our Price: $339.99
SALE PRICE: $169.99
(Out of 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
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE SNIPER GRAY GREY P80-PS9C-STD-BN-CKSNGRY P80-PS9C-STD-BN P80 COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE SNIPER GRAY
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BRIGHT PURPLE P80-PS9C-STD-BN-CKBRPUR P80-PS9C-STD-BN P80 COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BRIGHT PURPLE
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE NRA BLUE P80-FOBC-CKNRBLU POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE NRA BLUE
MSRP: $140.00
Our Price: $109.99
SALE PRICE: $69.99
In Stock

(10)
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE TITANIUM P80-PS9C-STD-BN-CKTIT P80-PS9C-STD-BN P80 COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE TITANIUM
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 80% LOWER FRAME COMPACT G19 G23 P80-PF940C P80-BKC-BWWHT - CERAKOTE BATTLEWORN WHITE P80 PF940C GLOCK 19 GLOCK 23 POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE BATTLEWORN WHITE
MSRP: $170.00
Our Price: $129.99
SALE PRICE: $79.99
(Out of Stock)
(8)
POLYMER80 80% PISTOL FRAME KIT WITH JIG SUB-COMPACT G26 / G27 PF940SC P80-PF940SC-BLK - BLACK + JIG Glock 26 Glock 27 P80 POLYMER80 80% PISTOL FRAME KIT WITH JIG SUB-COMPACT G26 / G27 PF940SC P80-PF940SC-BLK - BLACK + JIG
MSRP: $159.00
Our Price: $119.99
SALE PRICE: $109.99
(Out of Stock)
(30)
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 CRIMSON RED DEADPOOL P80-FOBC-CKCRRED P80 GLOCK 17 GLOCK 22 POLYMER80 80% FRAME ONLY STANDARD G17 / G22 - CERAKOTE CRIMSON RED
MSRP: $140.00
Our Price: $109.99
SALE PRICE: $69.99
(Out of Stock)
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE P80 FDE FLAT DARK EARTH MPN: P80-PS9C-STD-BN-CKP80FDE COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE P80 FDE FLAT DARK EARTH
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
(Out of Stock)
POLYMER80 PF320 PTEX GRIP MODULE / FRAME FOR SIG SAUER P320 - P80-PF320-ODG - OD GREEN POLYMER80 PF320 PTEX GRIP MODULE / FRAME FOR SIG SAUER P320 - P80-PF320-ODG - OD GREEN
MSRP: $64.00
Our Price: $59.99
SALE PRICE: $49.99
In Stock
POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BURNT BRONZE COPPER P80-PS9C-STD-BN-CKBRBNZ P80-PS9C-STD-BN P80 COMPACT G19 POLYMER80 9MM STRIPPED SLIDE GLOCK 19 FITMENT GEN 3 P80 PF940C P80-BKC - CERAKOTE BURNT BRONZE
MSRP: $315.00
Our Price: $254.99
SALE PRICE: $119.99
In Stock
POLYMER80 80% LOWER RECEIVER SUB-COMPACT G26 / G27 FITMENT P80-BKSC-BLK - BLACK GLOCK 26 GLOCK 27 9MM 40S&W P80-PF940SC-BLK POLYMER80 80% LOWER FRAME SUB-COMPACT G26 / G27 PF940SC P80-BKSC-BLK - BLACK
MSRP: $149.00
Our Price: $109.99
SALE PRICE: $99.99
(Out of Stock)
(12)
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
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% POLYMER LOWER RECEIVER GLOCK 19 FITMENT - GRAY GREY - P80-PF940CV1-GRY P80-BKC-GRY P80-FOBC-GRY P80 POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - GRAY P80-FOBC-GRY
MSRP: $100.00
Our Price: $79.99
SALE PRICE: $49.99
In Stock

(8)
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: $69.99
(Out of Stock)
(6)
POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE SIG PINK P80 GLOCK 19 GLOCK 23 P80 POLYMER80 80% FRAME ONLY COMPACT G19 / G23 PF940C P80-BKC - CERAKOTE SIG PINK
MSRP: $140.00
Our Price: $109.99
SALE PRICE: $69.99
(Out of Stock)