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Keystone Arms
"We Aim To Please"
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  • Suppressors/Class 3
    • Silencers
    • In Stock-Silencers
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    • .30 Carbine
    • AR-15
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Keystone Arms

Keystone Arms

  • Your Premier Source For Thompson & Reising Machine Gun Parts
Glock Blue Label Dealer

Glock Blue Label Dealer

  • Officers, Active Military, Emt's, Firefighters, GSSF Can Purchase At A Discounted Price.
Parts And Accessories

Parts And Accessories

  • Wide Availability Of Parts And Accessories
Class III Transfers

Class III Transfers

  • Machine Guns, Silencers And Short Barreled RIfles
Fingerprint Kiosk In Store

Fingerprint Kiosk In Store

  • Start Your Form 4 Electronically
  • All
  • Reising SMG
  • In Stock Silencers
  • Books & Manuals
  • 1911
  • Thompson
  • AR-15
  • Sten
  • Galil (Under Construction)
  • .30 Carbine
  • M1 Garand
  • Buy Now
    $85.00 + tax for PA State only Add to cart
    Reising Magazine, 30 Round In White (Keystone MFG)

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Reising Magazine Spring, 20 Round

  • Buy Now
    $19.95 + tax for PA State only Add to cart
    Reising Trigger Guard (3 Hole)

  • Buy Now
    $5.50 + tax for PA State only Add to cart
    Reising Hammer Spring (NEW)

  • Buy Now
    $399.95 + tax for PA State only Add to cart
    Reising Dummy Receiver

  • Buy Now
    $1,199.95 + tax for PA State only Add to cart
    Reising Replica Dummy Gun Model 50

  • Buy Now
    $19.95 + tax for PA State only Add to cart
    Reising Magazine Pouch Repro

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Reising Trigger Spring Plunger

  • Buy Now
    $4.50 + tax for PA State only Add to cart
    Reising Trigger Spring (New Manufactured)

  • Buy Now
    $5.00 + tax for PA State only Add to cart
    Reising Trigger Spring

  • Buy Now
    $29.95 + tax for PA State only Add to cart
    Reising Trigger Disconnector Assembly

  • Buy Now
    $19.95 + tax for PA State only Add to cart
    Reising Trigger Stripped

  • Buy Now
    $25.00 + tax for PA State only Add to cart
    Reising Spring Kit, 7 New Springs

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    Reising Swing Swivel Assy (2) Required

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Reising Sling Repro

  • Buy Now
    $4.50 + tax for PA State only Add to cart
    Reising Sear Spring (New Manufactured)

  • Buy Now
    Texas Silencer – The Scoundrel .22 Rimfire

  • Buy Now
    Texas Silencer – The Outrider

  • Buy Now
    Texas Silencer – The Hunter

  • Buy Now
    $7.95 + tax for PA State only Add to cart
    M1 Garand Rifle .30cal

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    M60D

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Thompson Owners Manual West Hurley, NY

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Browning M1918A2 BAR

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    The Thompson Gun Reprint 1921-1923

  • Buy Now
    $7.95 + tax for PA State only Add to cart
    Sten

  • Buy Now
    $1.95 + tax for PA State only Add to cart
    FN Leger FAL

  • Buy Now
    $5.95 + tax for PA State only Add to cart
    Enfield

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Walther P38

  • Buy Now
    $6.50 + tax for PA State only Add to cart
    Tokarov

  • Buy Now
    $7.95 + tax for PA State only Add to cart
    1917 .30 Cal Rifle

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    M1903 .30cal Rifle

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Grease Gun

  • Buy Now
    $29.95 + tax for PA State only Add to cart
    M14 7.62

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    M1911A1

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    Thompson Sub Machine Gun & Semi-Auto Carbine Reprint 1936

  • Buy Now
    $1.95 + tax for PA State only Add to cart
    Trigger Lash (Stop) Screw Wrench

  • Buy Now
    $1.95 + tax for PA State only Add to cart
    Trigger Lash (Stop) Screw

  • Buy Now
    $12.95 + tax for PA State only Add to cart
    Trigger

  • Buy Now
    $10.95 + tax for PA State only Add to cart
    Take Down Tool Parkarized GI

  • Buy Now
    $15.95 + tax for PA State only Add to cart
    Take Down Tool Blued (Original)

  • Buy Now
    $1.95 + tax for PA State only Add to cart
    Slide Stop Plunger

  • Buy Now
    $12.95 + tax for PA State only Add to cart
    Slide Stop

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    Slide

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Sear Spring

  • Buy Now
    $1.50 + tax for PA State only Add to cart
    Sear Pin

  • Buy Now
    $8.95 + tax for PA State only Add to cart
    Sear

  • Buy Now
    $1.50 + tax for PA State only Add to cart
    Safety Lock Plunger

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    Safety Lock Thumb

  • Buy Now
    $4.50 + tax for PA State only Add to cart
    Recoil Spring Plug

  • Buy Now
    $6.95 + tax for PA State only Add to cart
    Recoil Spring Buffer

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Recoil Spring Guide

  • Buy Now
    $44.95 + tax for PA State only Add to cart
    M1/M1A1 Rear Grip (New)

  • Buy Now
    $34.95 + tax for PA State only Add to cart
    Chamber Brushes x10

  • Buy Now
    $4.50 + tax for PA State only Add to cart
    Chamber Brush

  • Buy Now
    $24.95 + tax for PA State only Add to cart
    Vertical Foregrip 1/2″ Repro

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    Magazine Loader Polymer

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    M1/M1A1 Buffer Pilot (G.I.)

  • Buy Now
    $2.95 + tax for PA State only Add to cart
    Trigger Spring (G.I.)

  • Buy Now
    $39.95 + tax for PA State only Add to cart
    Trigger (G.I.)

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Sear Spring (G.I.)

  • Buy Now
    $2.50 + tax for PA State only Add to cart
    Sear Lever Spring (G.I.)

  • Buy Now
    $19.95 + tax for PA State only Add to cart
    Sear Lever (G.I.)

  • Buy Now
    $24.95 + tax for PA State only Add to cart
    Sear (G.I.)

  • Buy Now
    $7.50 + tax for PA State only Add to cart
    Rocker (G.I.)

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Rear Grip Screw (Repro. to G.I. Spec.)

  • Buy Now
    $149.95 + tax for PA State only Add to cart
    Pivot Plate (G.I.)

  • Buy Now
    $3.50 + tax for PA State only Add to cart
    Magazine Catch Spring (G.I.)

  • Buy Now
    Upper Receiver, A1 Stripped, Brass Defl.

  • Buy Now
    Upper Receiver A1 Stripped, No Forward

  • Buy Now
    Upper Receiver Stripped, Flat Top

  • Buy Now
    Upper Receiver, A2, Complete

  • Buy Now
    $1.50 + tax for PA State only Add to cart
    Rear Sight Index Knob Spring (A2)

  • Buy Now
    $1.50 + tax for PA State only Add to cart
    Rear Sight Index Knob Ball Bearing (A2)

  • Buy Now
    $1.95 + tax for PA State only Add to cart
    Rear Sight Index Knob Screw (A2)

  • Buy Now
    $6.95 + tax for PA State only Add to cart
    Rear Sight Elevation Index Knob 8/3 (A2)

  • Buy Now
    $6.95 + tax for PA State only Add to cart
    Rear Sight Elevation Knob (A2)

  • Buy Now
    $1.00 + tax for PA State only Add to cart
    Safety Selector Spring

  • Buy Now
    $1.00 + tax for PA State only Add to cart
    Safety Selector Detent

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Safety Selector (AR)

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    Buttplate Door Assembly, Aluminum

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Buffer Tube Spacer

  • Buy Now
    $3.95 + tax for PA State only Add to cart
    Rear Takedown Pin

  • Buy Now
    $64.95 + tax for PA State only Add to cart
    Rear Sight Assy. (Detachable Carry Handle)

  • Buy Now
    $1.00 + tax for PA State only Add to cart
    Barrel Fixing Pin

  • Buy Now
    $3.50 + tax for PA State only Add to cart
    Trigger Housing Screw & Washer

  • Buy Now
    $19.95 + tax for PA State only Add to cart
    Trigger Housing Cover (2 Hole)

  • Buy Now
    $6.95 + tax for PA State only Read more
    Tripping Lever MKV

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    Trigger Spring (Original/Used)

  • Buy Now
    $3.50 + tax for PA State only Add to cart
    Sear Pin

  • Buy Now
    $3.50 + tax for PA State only Add to cart
    Tripping Lever Pin

  • Buy Now
    $34.95 + tax for PA State only Add to cart
    Ejector (New Mfg)

  • Buy Now
    $24.95 + tax for PA State only Read more
    Pistol Grip (Front Vertical) Repro

  • Buy Now
    $24.95 + tax for PA State only Read more
    Pistol Grip (Rear Para)

  • Buy Now
    $5.50 + tax for PA State only Add to cart
    Tripping Lever MKII

  • Buy Now
    $1.95 + tax for PA State only Read more
    Trigger Spring (New)

  • Buy Now
    $3.95 + tax for PA State only Add to cart
    Trigger Retaining Pin

  • Buy Now
    $49.95 + tax for PA State only Add to cart
    Trigger Housing with Rear Ring (Stripped)

  • Buy Now
    $19.95 + tax for PA State only Add to cart
    Trigger Housing Cover (1 Hole)

  • Buy Now
    $7.50 + tax for PA State only Add to cart
    Trigger

  • Buy Now
    Trigger Spring

  • Buy Now
    $11.95 + tax for PA State only Add to cart
    Trigger Pin

  • Buy Now
    Tigger Guard

  • Buy Now
    $24.95 + tax for PA State only Add to cart
    Trigger

  • Buy Now
    $49.95 + tax for PA State only Read more
    Top Cover W/Sight Base

  • Buy Now
    $74.95 + tax for PA State only Add to cart
    Top Cover Assy. W/Sight Assembly

  • Buy Now
    Support, Rear Handguard Arm

  • Buy Now
    $7.95 + tax for PA State only Add to cart
    Stock Retaining Pin

  • Buy Now
    Selector Lever Only (R.H.) – Dust Cover-

  • Buy Now
    $39.95 + tax for PA State only Add to cart
    Selector Lever Assy. (R.H.) W/Cross piece

  • Buy Now
    Sear Disconnector

  • Buy Now
    Safety Lever Assy. (Semi .223) R.H. W/Cross piece

  • Buy Now
    $11.95 + tax for PA State only Add to cart
    Recoil Spring Lock Ring

  • Buy Now
    $31.95 + tax for PA State only Add to cart
    Recoil Spring Guide, Outer

  • Buy Now
    $21.95 + tax for PA State only Add to cart
    Recoil Spring Guide, Inner

  • Buy Now
    $9.95 + tax for PA State only Add to cart
    Recoil Spring, used

  • Buy Now
    $32.50 + tax for PA State only Add to cart
    Barrel Band w/ Bayonet Lug (New, GI, Parkarized)

  • Buy Now
    $10.95 + tax for PA State only Add to cart
    Sling Khaki (New Reproduction)

  • Buy Now
    $3.95 + tax for PA State only Add to cart
    Stripper Clips 10Rd

  • Buy Now
    $21.95 + tax for PA State only Add to cart
    Carry Case

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Magazine Pouch 30 Rd, 4 Pocket, New Reproduction

  • Buy Now
    $10.50 + tax for PA State only Add to cart
    Oiler

  • Buy Now
    $44.95 + tax for PA State only Add to cart
    Flash Hider GI (New)

  • Buy Now
    $19.95 + tax for PA State only Add to cart
    Magazine 15rd (New)

  • Buy Now
    $29.95 + tax for PA State only Add to cart
    Magazine 30rd (New)

  • Buy Now
    $4.95 + tax for PA State only Add to cart
    Dual Magazine Holder

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Compensator (Solder On)

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Barrel Band Type 1 (Repro)

  • Buy Now
    $15.95 + tax for PA State only Add to cart
    Barrel Band Type 2 (Repro)

  • Buy Now
    $2.50 + tax for PA State only Add to cart
    Magazine Cap

  • Buy Now
    $5.95 + tax for PA State only Add to cart
    Trigger Spring

  • Buy Now
    $2.95 + tax for PA State only Add to cart
    Trigger Pin

  • Buy Now
    Hammer SA C 5546008

  • Buy Now
    Hammer 9 SA

  • Buy Now
    Hammer 7 SA

  • Buy Now
    Hammer 5 SA

  • Buy Now
    Safety 11SA

  • Buy Now
    Safety 9SA

  • Buy Now
    Safety 6SA w/ hole

  • Buy Now
    Safety 6SA

  • Buy Now
    Bolt Stripped 6628287-SA

  • Buy Now
    Bolt Stripped 2-SA

  • Buy Now
    Bolt Stripped 12SA

  • Buy Now
    Bolt Stripped 19SA

  • Buy Now
    $6.95 + tax for PA State only Add to cart
    Sight & Muzzle Cover

  • Buy Now
    $14.95 + tax for PA State only Add to cart
    Operating Rod Spring (New)

  • Buy Now
    $4.50 + tax for PA State only Add to cart
    Ejector

  • Buy Now
    $2.50 + tax for PA State only Add to cart
    Ejector Spring

We are your Premier Source for Thompson & Reising Machine Gun Parts

Our goal is to provide you with a product at at fair price.
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About Keystone Arms

Keystone Arms has been serving the Tri-State area since 1993. We have a wide variety of firearms, ammunition, parts and accessories.
We buy firearms, any quantity, cash paid.

Glock Law Enforcement Dealer.

NFA Sales and Transfers.

State Product Restrictions

We comply with ALL Local, State, and Federal laws!

You must be aware of any Local, State, or Federal laws affecting your purchase.

If you have any doubts, please call us at 570-491-4867.

*NOTE*

No Machine Gun Parts to the State of Washington

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