Exploded view / parts list

 

 
   

Parts list

 

100 receiver

111. Receiver casing

141. Bolt cover

142. Rivet

151. Rear sight drum

152. Drum spring

153. Drum stud

154. Luminous ampule*

155. Insert

156. Rubber disc

161. Pivot

 

162. Drum axle

163. Spring washer

164. Safety washer

165. Leaf spring

171. Windage correction screw

172. Click stud

173. Rear sight spring

174. Limitation spring

175. Spring pin

181. Elevation correction screw

 

 

200 Barrel / gas system

211. Barrel*

212. Front sight mount*

213. Roll pin

214. Spring ring**

221. Bayonet lug**

222. Spring pin

223. Stop pin

224. Compression spring

225. Spring pin

231. Front sight

232. Night front sight

233. Positioning bolt

234. Night front sight spring

 

 

235. Spring pin

236. Front sight screw

237. Front sight disc

238. Spring pin

241. Gas valve

251. Gas tube

261. Gas piston

262. Recoil spring

263. Spring pin

264. Spring pin

265. Spacer

268. Support washer

 

 

300 Handguard

311. Upper handguard

321. Lower handguard

330. Bipod complete**

331. Leg left**

332. Leg right**

 

333. Bipod carrier**

334. Stud**

335. Circlip**

336. Click stud**

337. Bipod spring**

 

 

400 Bolt

411. Bolt head

412. Firing pin

413. Firing pin stud

414. Firing pin spring

415. Extractor

416. Extractor spring

417. Pin

 

421. Bolt carrier

422. Bolt handle catch

423. Axel of bolt handle catch

424. Spring of bolt handle catch

425. Bolt handle

* Can not be ordered as individual parts

**Not on SG 551

500 Trigger assembly

501. Trigger casing

510. 3-round burst facility

511. Template

512. Chargeover

513. Pawl

514. Pawl spring

515. Bush

516. Segment

517. Segment axle

518. Segment spring

519. Locking washer

520. Compression spring

521. Magazine catch

522. Magazine catch spring

523. Magazine catch pin

524. Bush

531. Release bar

532. Circlip

541. Pistol grip

542. Floorplate

543. Allen screw

544. Stop nut

545. Nameplate

551. Pressure point screw

552. Stop nut

553. Pressure point spring

554. Trigger guard

555. Trigger guard bearing

561. Hammer

 

562. Hammer axle

563. Main spring

564. Bolt catch

565. Bolt catch spring

566. Spring bolt

571. Safety lever

572. Safety shaft

573. Locking spring

575. Automatic firing lock axle

576. Spring pin

578. Stop ring

581. Trigger

582. Trigger spring

583. Trigger rod

584. Pivot trigger

585. Trigger bush

586. Trigger rod spring

587. Sear*

588. Automatic fire pawl

589. Automatic fire pawl spring

591. Trigger casing stud

592. Spring –pressure pin

593. Spring for trigger casing stud

594. Spring pin

595. Pin

596. Cup spring

597. Baffle plate

598. Sear bolt*

599. Sear roller*

 

 

600 Butt

611. Buttstock

612. Butt catch

613. Butt catch spring

 

614. Clip

615. Spring pin

616. Butt

 

 

700 Magazine

711. Magazine casing

712. Magazine floorplate

713. Floorplate catch

 

714. Feeder

715. Magazine spring

 

* Can not be ordered as individual parts