In Stock

7″ 9mm Build Kit


Weight 3.5 lbs



  • Billet 6061 upper receiver
  • Standard Charging Handle
  • Glock cut 9mm bcg
  • 7″ Nitride 9mm barrel
  • 7″ Free Float handguard (keymod or mlok depending on availability A2 muzzle device or better)
  • Mil spec lower parts kit USA MADE
  • 9MM Pistol buffer kit – may or may not have foam depending on availability


There are no reviews yet.

Be the first to review “7″ 9mm Build Kit”

Your email address will not be published. Required fields are marked *

Quick Comparison

Settings7" 9mm Build Kit removePolymer80 PF9SSBLK PF9SS 80% Glock 43 Black Gen 4 Polymer Frame remove5.56 AR 15 Rifle Kit (16" Parkerized Barrel 1:8 Twist & 15" M-Lok Handguard) remove16" FDE Kit - 300 Blackout removeCOMPLETE 16" AR-9 80% BUILD KIT removeAR-10 .308 16" TACTICAL ALPHA CARBINE KIT W/15" MLOK RAIL - DPMS remove
Price $549.99$108.99$449.99 $569.99$899.99$934.98$699.95$769.95
Add to cart

Add to cart

Add to cart

Add to cart

Add to cart

Select options

Select options

Weight 3.5 lbs
Weight 7.5 lbs


  • Billet 6061 upper receiver
  • Standard Charging Handle
  • Glock cut 9mm bcg
  • 7″ Nitride 9mm barrel
  • 7″ Free Float handguard (keymod or mlok depending on availability A2 muzzle device or better)
  • Mil spec lower parts kit USA MADE
  • 9MM Pistol buffer kit – may or may not have foam depending on availability
Product Details
Polymer80 PF9SSBLK PF9SS 80% Glock Black 43 Gen 4 Polymer Frame PF9SS Single Stack Frame features aggressive and adaptable grip texture that emulates a stippled pattern, an extended beaver tail, double undercut trigger guard, thumb ledge, picatinny/STANAG compliant accessory rail, blank serialization plate, stainless steel locking block rail system and rear rail module, hardened pins for LBRS and RRM, complete finishing jig, drill bits and end mill included. Compatible with Gen 4 Glock G43 slide assemblies and magazines. These features considerably enhance the ergonomics allowing for an effective grip and improved recoil mitigation. The PF9SS is a perfect build for Everyday Carry and comes with an embedded metal plate for those that wish to serialize their completed pistols.  
Brand Polymer80
Category Frames
Model PF9SS
Frame Finish Black
Frame Material Polymer
Gun Model Glock 43 Gen 4
Gun Type Pistol
Search Code P80
Similar Items Frame


Please Note: Given the current demand for this product and supply shortages, your order may ship with a black hammer and trigger or a stainless steel hammer and trigger. Ultra-light with hyper accuracy, this upgraded M4-type AR15 build kit is setting a new standard. Tucked under a lightweight free-float M-Lok handguard is a Government barrel forged from mil-spec 4150 Chromoly Vanadium with a 1:8 twist. Throw some 62-grain M193 or 77-grain Match Kings down the muzzle, and you’ll put one hole atop another at 100 yards for sub-MOA performance. All things remain mil-spec for utter reliability: A forged Picatinny flattop receiver with M4 feed ramps keeps everything cycling smoothly in tandem with an M16 chrome-lined BCG. Carbine gas ensures any loads will cycle quickly and smoothly, and a mil-spec parts kit with Carbine buffer and M4-type buttstock finishes off the kit.

What’s Included

This kit is not a firearm. It includes an assembled upper receiver, bolt carrier group, lower parts kit, and buffer assembly with buttstock. It does not include the component to make a firearm: A stripped lower receiver. Pair this rifle kit with an AR-15 80% lower receiver and AR-15 jig to fabricate a receiver, sold separately. Here's the beginner's guide to 80% lowers.

AR-15 Rifle Kit Specs

Barreled uppers are assembled in-house before shipment.


  • Chamber: 5.56 NATO
  • Contour: M4/Government
  • Length: 16”
  • Twist Rate: 1:8
  • Gas System: Carbine
  • Gas Port: 0.750”
  • Gas Hole Dia.: 0.070”
  • Muzzle Threads: 1/2x28
  • Feed Ramps: M4
  • Material: 4150 CMV
  • Finish: Parkerized
  • Process: Button Rifled
  • Lining: None
  • Extension: M4
  • Muzzle: A2 “Birdcage” Flash Hider


  • Attachment System:  M-Lok
  • Finish: Type III Hardcoat Anodized (Mil-Spec)
  • Top Rail: M1913 Picatinny
  • Material: Billet 6061-T6 Aluminum
  • Attachment: Barrel Nut 

Stripped Upper Receiver

  • Profile: M4 Flattop
  • Material: Forged 7075-T6 Aluminum
  • Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

  • Profile: M16/Full-Auto
  • Steel: Carpenter No. 158 (Mil-Spec)
  • Exterior: Phosphate Coating
  • Interior: Chrome-Lined
  • Gas Key: Staked, Chromed
  • Charging Handle: Included

Lower Receiver Parts

  • Buffer System: Mil-spec, Carbine
  • Buttstock: Mil-spec, M4-type
  • Parts Kit: Mil-spec, single-stage

Receiver sold separately

No FFL or serialization is required to fabricate a receiver under federal law. However, state laws vary. Some states require serialization or have banned 80% lowers and gun-making kits. We encourage each and every builder to perform their own research about the state and federal laws that apply to them.
Made in the USA Lifetime Warranty


This kit will include everything to finish your AR-15 pistol except the STRIPPED lower receiver
  • Either mil spec upper receiver or upgraded billet upper receiver (depending on availability) FDE cerakote
  • Nitride bcg
  • Standard charging handle
  • 12″ free float quad rail FDE
  • Forward assist and dust cover include (where applicable)
  • 16″- 300 Blackout
  • 4150 chromoly vanadium or 416 R stainless barrel depending on customer choice and availability
  • Steel gas block
  • Stainless steel gas tube
  • Steel Flash hider (design will depend on caliber choice) pictured is 5.56 kit
  • 100% USA made Lower parts kit
  • adjustable tan stock kit ( color does not match the upper color stock will vary)
((disclaimer the polymer stock does not exactly match the cerakote coating of the upper and handguard))

KIT notice as of March 1st 2020.

All build kits are subject to change slightly in this time of EXTREME demand. We are not currently able to fill specific spec requests.. the kit parts will fall into the general specs above but items such as stocks, handguards, and muzzle devices are changing daily.

Due to extreme order volume the handguard may NOT be a quad rail.. it will be either a quad rail, mlok or keymod depending on availability.  You can still attach rail sections to mlok and keymod for your accessories
This blowback AR-9 80% build kit with Glock mag style 80% lower contains all the necessary high-quality parts to build your 9mm Carbine at home! We removed all the guesswork and packaged the necessary parts to build what we believe is the highest quality 80% AR-9 lower for sale on the web. Buy as a complete kit and save money versus purchasing the necessary items separately! All AR upper receivers will arrive assembled per your specifications and are QC checked prior to shipment. Our Complete AR-9 80% Build Kit Features:
  • Slick Side Billet AR-9 Upper Kit Receiver with Last Round Bolt Hold Open (LRBHO)
  • Billet 6061-T6 AR-9 80% Lower - Glock Style Mags
  • 16" Parkerized 9mm Barrel with 1:10 Twist Rate
  • Black Nitride 9mm Bolt Carrier Group
  • Standard AR-15 Charging Handle
  • Mil-Spec Stock
  • 5D Tactical 7.5oz 6-Position Carbine Buffer Tube Kit
  • AR-9 Lower Parts Kit


AR-10 .308 16" Tactical Carbine Kit w/15" Mlok Rail- DPMS Compatible. This kit contains all components to complete your AR-10 project. The kit comes WITHOUT 80% lower receiver. All components are carefully chosen to fit DPMS style lo pro .308 pattern and made in the USA. DPMS compatible. Standard kit includes all of the following high quality parts: Barrel: 16″ CMV, SOCOM CMV (lightweight) Chamber: .308 Win Twist: 1 in 10” Thread: 5/8x24 .750” Gas Block Diameter Mid Gas System DPMS Style low profile billet upper receiver Forward Assist Ejection Port Cover A2 Style Flash Hider 308 light profile free float handguard 308 Bolt Carrier Group 308 Charging Handle 308 Mil Spec Lower Parts Kit Alpha 6-Position Mil-Spec Stock Assembly   Barrel: 16″ .308 Win M4 Feed Ramp 4150 CMV, 1 in 10” twist, mid length gas system with .750 gas block diameter. Barrel is finished off with 15" thin profile monolitic Mlok free float handguard, A2 "birdcage" style flash hider and a crush washer. Upper: Billet DPMS style upper is flat top, precision machined and hard coat anodized per MIL-8625 Type 3 Class 2. These upper receivers are precision machined from a solid block of aluminum, a true billet upper for added strength and rigidity. These uppers include integral shell deflector, forward assist housing, M-4 style feed ramps, and have flat top 1913 picatinny rail. Complete with forward assist and dust cover assemblies. Bolt Carrier Group:  .308/7.62x51 complete bolt carrier assembly, chrome lined, nitride finish. MPI Tested. Comes complete with cam pin, firing pin and firing pin retainer. Lower Build Kit: DPMS style .308 lower parts kit w/Ergo grip, compatible with small hole pins. Stock: Alpha 6-position .308 carbine stock kit in black. Designed specifically for DPMS style 308 rifles. Includes buffer tube, castle nut, end plate, .308 buffer and carbine spring.   Please Note: Comes unassembled. Does not come with sights or magazines. Standard kit is DPMS compatible.


  This kit is not an FFL item.  Approximate weight of the kit: 7lb
Additional information
Muzzle Device

None, (9mm) 1/2"x36 A2 Flash Hider (Black) [Add $0.00], (9mm) 1/2"x36 Compact Muzzle Brake (Black) [Add $34.99]


None, 12" MLOK Handguard

CA/NY Compliant:

None, Muzzle Brake (+$20.00)

Add Assembled Upper:

None, Assembled Upper (+$50.00)

Rail System:

None, M-LOK