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1. Gas Tube- 5/64 x 5/16 Part No. 93740A622
2. Trigger Guard- 1/8 x 5/8 Part No. 98296A879
3. Forward Assist- 3/32 x 5/8 Part No. 98296A849
4. Ejector Pin- 1/16 x 3/8 Part No. 98296A023
5. Bolt Catch- 3/32 x 7/16 Part No. 98296A837
6. Socket Head Cap Screw (Gas Key) 8-32 x ¼ Part No. 91251A190
7. Pointed Set Screw (Gas Block) 10-32x 3/16 Part. No. 90289A337
McMaster-Carr
Get a few friends together for an order a life time supply and pay 4 cents instead $1.50
2. Trigger Guard- 1/8 x 5/8 Part No. 98296A879
3. Forward Assist- 3/32 x 5/8 Part No. 98296A849
4. Ejector Pin- 1/16 x 3/8 Part No. 98296A023
5. Bolt Catch- 3/32 x 7/16 Part No. 98296A837
6. Socket Head Cap Screw (Gas Key) 8-32 x ¼ Part No. 91251A190
7. Pointed Set Screw (Gas Block) 10-32x 3/16 Part. No. 90289A337
McMaster-Carr
Get a few friends together for an order a life time supply and pay 4 cents instead $1.50